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Mission Critical

(Gray Man #8)

4.47  ·  Rating details ·  1,959 ratings  ·  177 reviews
From Mark Greaney, the New York Times bestselling author of Gunmetal Gray and a coauthor of Tom Clancy's Jack Ryan novels, comes a high-stakes thriller featuring the world's most dangerous assassin: the Gray Man.

Court Gentry's flight on a CIA transport plane is interrupted when a security team brings a hooded man aboard. They want to kick Gentry off the flight but are over
Hardcover, 512 pages
Published February 19th 2019 by Berkley
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4.47  · 
Rating details
 ·  1,959 ratings  ·  177 reviews

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Feb 01, 2019 rated it really liked it
This is the 8th in Mark Greaney's Gray Man series but my first, but it works perfectly fine as a standalone. The Gray Man, Court Gentry, code name The Violater, is the world's most dangerous assassin, an off the books contract killer for the CIA, one of those comprising Poison Apple, engaged in black ops run by Matt Hanley, Deputy Director of Operations. Gentry's handler, the ambitious Suzanne Brewer wants him back in Langley which has him on a CIA transport flight, where a security team bring o ...more
Jennifer ~ TarHeelReader
Mar 01, 2019 rated it really liked it
This is my first foray into the Gray Man series by Mark Greaney, and I was assured this book can be read as a standalone. I’m happy to report it absolutely can, and I definitely want to read more of the Gray Man books.

The Gray Man is one of the most dangerous and mysterious assassins in the world, and he works for the CIA as a contract killer.

Court Gentry is on a CIA plane when a security team brings a disguised man on board. An attempt is made to get Gentry off the plane, but the CIA says no.
Feb 18, 2019 rated it really liked it
Mission Critical, the eighth novel in the Gray Man series, is another high-octane, action-packed and nail-bitingly tense thriller from an author who has swiftly become a favourite of mine due to the consistently superb ride on which he takes his readers, and I would go so far as to say this is his best work to date. Here, Greaney crafts another hard-hitting, propulsive story and delivers a plethora of shocks and surprises with considerable aplomb. He also puts a fresh, modern spin on the espiona ...more
The Real Book Spy
Nov 26, 2018 rated it it was amazing
Mark Greaney (Agent in Place, 2018, etc.) reignites the Cold War in his latest must-read thriller featuring the Gray Man.

Back with the CIA in an unofficial capacity, Courtland Gentry, better known as the Gray Man, is given orders by his handler, Suzanne Brewer, to return to Washington. As it turns out, an agency plane happens to be in the region, and Court’s able to hitch a ride–but it’s not a direct flight to D.C. Their first stop is in Luxembourg City, where another group of operators boards
Terence M
Mar 26, 2019 rated it really liked it  ·  review of another edition
Mission Critical (Gray Man #8) – Mark Greaney
Audiobook - 17:02 Hours (512 pages) - Narrator: Jay Snyder
Started: March 19, 2019 – Finished: March 26, 2019
💥💥💥💥 - 4.0 Stars of 5.0
I have listened to all of the 8 Gray Man audiobooks and I enjoyed every one of them to varying degrees, awarding 2 x 5 Stars, 3 x 4 Stars and 3 x 3 Stars. The Gray Man enjoyment process is pretty simple:
*Dial Down your expectations to at least moderate credibility levels;
*Dial Up your expectations of an intricate, excit
Mar 14, 2019 rated it really liked it  ·  review of another edition
I have read this series from the beginning. I got hooked on the series with book one and it has become one of my favorites.

The book is well written and is packed with continuous action. Greaney grabbed my attention right at the beginning of the story and held it throughout. Court Gentry is the Grey Man and now is a contractor with the CIA instead of an employee. I enjoyed getting together with the regular characters and meeting some new ones. Sometimes the continuous action exhausted me, but I j
Chris  C - A Midlife Wife
Finally finished! Excellent read!!
This story is intense from the beginning and completely grabs you. That is the one factor I love about reading this series. The author never repeats a plot or even a similar plot by another author. Each book I have read, and especially this one, has been completely unique, fast-paced, and totally gripping.

Mission Critical takes us to Europe for most of the story and the slow build in intensity, suspense, and information will just about st
Judy Lesley
Jan 19, 2019 rated it it was amazing
Thank you to Berkley for an ARC of this novel.

Court Gentry is back for an eighth breathtaking thriller adventure and if you haven't read any of the Gray Man series yet, you've got quite a treat in store when you read this one. All the books are standalone but, of course, you get the full character development if you begin with the first and read right through them. Court is back working with the CIA in a capacity that is so secret even the other assets don't know the whole story. By the end of t
Slaven Tomasi
Feb 07, 2019 rated it it was amazing
Mission Critical, the eighth Gray Man novel from national best-selling author, Mark Greaney. Mark also wrote or co-wrote seven novels with author Tom Clancy in the Jack Ryan series and the Campus Novel series. On top of that, Mark also has another novel coming out this year, Red Metal (Out 7/16). Co-written with decorated United States Marine Officer, Lieutenant Colonel Hunter Ripley Rawlings.

Mission Critical reads like two separate thrillers combined in one, with two dangerous, highly trained a
Mar 03, 2019 rated it it was amazing
If you like this genre and aren't reading this series your missing out! Not sure how he does it but Mark Greaney just gets better and better. It has been a pleasure watching his writing evolve and growing along side this character.
This book is long, intense, and has many players. This didn't feel overwhelming as MG gave each character the appropriate amount of attention, thus the reader remains invested. The conclusion feels like our protagonist is moving into yet another chapter of his life an
Feb 26, 2019 rated it it was amazing
Mission Critical is one of the finest novels I have ever read. Brilliantly infused plot-lines without turning overwhelming, stunning action sequences ranging from hand-to-hand combat to shootouts and car chases involving shootouts, a roster of returning characters and wonderful humor to balance the gritty situations in the novel. Court Gentry is back as The Gray Man, wrecking havoc in spectacular sequences of action and car chases on bad guys that cross his path. It is always a pleasure to see C ...more
Raphael El
Apr 10, 2019 rated it it was amazing
Another great action thriller in this series. I would love to see a spin off based on Sir Donald Fitzroy and Zack Hightower.
Mar 12, 2019 rated it it was amazing
Shelves: crime
Review can be found on my blog here: https://booksonthebookshelf.wordpress...


Thank you to the Publisher for gifting me a copy of this book to read and share my review.


Wow! What a ride! A brilliantly written, fast-paced, action-filled novel that will have you on the edge of your seat for the whole ride! A nail-biter of a book, this will not disappoint you.

This was the first book by Mark Greaney that I have read and it definitely will not be my last! Mission Critical is book #8 in the Gray
Dan Curnutt
Mar 06, 2019 rated it really liked it
In another "Gray Man" political thriller we find Court Gentry sucked into action while just trying to catch a plane ride back to the United States. Even though he is just trying to sleep his way through a flight he ends up in the center of the action and actually has to rescue multiple people and try and finish an operation that he wasn't even a part of.

In true Gray Man fashion he can evaluate an operation, plan on the move, take down multiple bad guys at a time and still have time to find a pre
Donna Hines
Court Gentry is on a mission. One that involves capturing Feodor Zakharov -AKA-The Black Wolf.
His daughter seems to be running the show as she spies upon Americans. Zoya was taught this at an early age and has never let up.
Side plots are popping up all over while leaving Court to fend for himself in impossible situations.
Now the Poison Apple is part of this madness but it also appears that not everything was hammered down such as the Five Eyes council meeting.
I've not read previous books by Mar
Mar 17, 2019 rated it liked it
Shelves: suspense, thriller
Mission Critical follows the same formula as the previous Court Gentry novels, but it did not have the usual suspenseful hook that would keep the reader's attention. Court ends up in a seemingly impossible situation multiple times, which is nothing new. The problem that I had with the novel was that too much time was spent on side plots, especially the one that involved a possible breach in the covert chain.

The novel was entirely too long, getting bogged down in the middle due to the aforementio
Mar 28, 2019 rated it really liked it
Started out an excellent thriller, but was not as good as his previous book. This could be a bit shorter and I'm not sure if I liked the ending. Still a good action thriller.
Apr 08, 2019 rated it really liked it
I really like the Gray Man series and this one is one of the better ones. I think that the characters development are getting better and more interesting for every book, I actually liked that more than the story. Court Gentry is having such a bad luck and I wonder what will happen in the future for him, that is one of the reasons I'm a sucker for series with good interesting characters. It started so many years ago with C.S. Forester and his hero Hornblower. I can only recommend that you try Mar ...more
Garlan ✌
Mar 24, 2019 rated it really liked it
Another good one. Greaney is getting better with each novel in the series. Lots of action. 4 stars.
Mar 18, 2019 rated it really liked it
Goodreads says this is book 8? fast paced, totally gripping read. i wanna read more. great writing style. great book cover. love how it was laid out ... love it when folks laid out characters and if you by chance get confused u can take that list over and over. i mean u can not keep up with everything u know! this was a Goodreads win .. i do believe??! i think!??! political thriller. being that i am a newbie to this author, i am curious if need to see how we got here to book 8? i don't feel lost ...more
Trish R.
Feb 27, 2019 rated it it was amazing  ·  review of another edition
Boo-hoo! Another great read in the Gray Man series bites the dust. And I loved it. But, boy! This time Court got the hell beat out of him twice by Jon Hines, a 6’9 giant monster, almost 3 times, if Court hadn’t finally given him all that he deserved.

There was so much excitement and killing in this I couldn’t even begin to guess how many died. Good guys and bad.

And I liked that Court had a little romance, everything off-screen, with Zoya, but I thought it was a little silly why she was so angry
Mar 04, 2019 rated it really liked it
Shelves: audio
Love the Gray Man - he really is one of my favorite characters and Mark Greaney doesn't disappoint ! Also Jay Snyder does an excellent narration - as always! Seriously - Brewer is a real B - maybe she'll get what she deserves in the next Gray Man novel..... looking forward to her payback!
Mar 03, 2019 rated it it was amazing  ·  review of another edition
The series continues to impress me. Not only with the thrilling action, but the character work. This being book 8 in the series, some long-time favorite past characters return for serious supporting roles. It makes for a fun and engaging read. Fans of the series will love this book.
Mojo Shivers
Feb 22, 2019 rated it it was amazing
In the land of the action thriller there are a few series that are atop the heap. Jack Reacher for sure. Pike Logan definitely. Orphan X of course. But right up there with those three, forming the Mount Rushmore of Badassery, is The Gray Man. Eight Books in and I’m still shocked at how well-plotted, well-written, and amazed at the level of detail there are in every Court Gentry book, especially the set pieces. These are novels begging, pleading to be turned into films and Mission Critical is no ...more
Kim Reads (Read Your Writes Book Reviews)
Mission Critical is the latest book in the The Gray Man series by Mark Greaney. As with all of the other books that I have read in this series, it did not disappoint. The Gray Man series is everything a master spy novel is supposed to be and then some. The action is intense and the suspense keeps you on the edge of your seat throughout. This time, there is a bit of romance that shows an entirely different side of The Gray Man aka Court Gentry, that I am glad we finally have an opportunity to exp ...more
Viviane Crystal
Feb 19, 2019 rated it really liked it
Courtland Gentry, the Grey Man, is back in action but not the way he planned. Returning to Washington by orders of his CIA boss, Suzanne Brewer, he’s relaxing in his seat on a plane landing in Luxembourg when some obvious-looking goons drag a man onto the plane, a man whose head is covered by a black bag. It turns out the plane heads to England but not with the prisoner. Upon landing in the U.K., a heavy gun battle ensues, shooting up the plane and killing several of the prisoner’s guards. Court ...more
Wow! This is the best yet of the Gray Man series. Mark Greaney writes the best action sequences. There are car chases, planes and gun flight galore. The story revolves around a traitor in the CIA that is compromising transports (including one of Court’s from a previous book). It bends and twists and ends up in Scotland at a meeting of the English-speaking nations’ intelligence agencies. As a side story, Zoya Zarakova is back! One of the greatest bad-ass female characters is in a CIA safe house a ...more
Mar 04, 2019 rated it liked it
This "eighth" in the series was okay. Certainly not the best.

SPOILER ALERT: Why would Hanley keep Suzanne??? I know, because the author wants a proverbial "thorn" in the agency; however, wouldn't a top-notch director reassign her? And then there is Zoya...angry for the wrong reason at the Gray Man. And the Gray Man practically tripping over his own feet to beat Zoya to the kill.

The author might want to re-think future plots to eliminate the silliness.
John Wintersteen
Aug 22, 2018 marked it as wish-list-possibles
Shelves: priorities
Coming out in February 2019.
Feb 28, 2019 rated it really liked it
Now that Clancy and Flynn are gone, Greaney has become one of my favorite authors in this genera. This is #8 in The Gray Man series. While it’s just another action novel – action primary with the plot secondary – I’m OK with that. Nevertheless, to my surprise, this book seems to be more plot driven than its predecessors. It has strong heroic(-ish) characters that are teamed-up, rather than the ‘singleton’ status of Court Gentry aka The Gray Man. (I’m not sure I liked that.)

A prior series charact
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Mark Greaney has a degree in International Relations and Political Science. In researching The Gray Man series he traveled to ten countries and trained extensively in the use of firearms, battlefield medicine, and close range combative tactics.


Email Mark at

Other books in the series

Gray Man (8 books)
  • The Gray Man (Gray Man, #1)
  • On Target (Gray Man, #2)
  • Ballistic (Gray Man, #3)
  • Dead Eye (Gray Man, #4)
  • Back Blast (Gray Man, #5)
  • Gunmetal Gray (Gray Man, #6)
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“Zack said, "What do you need to do to get out of here?"
"You have any frags?"
"That's a negative."
"The f_ck kind of rescue is this?”
“though he wasn’t sure” 0 likes
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