The Hulk’s friends take advantage of an interstellar mission he has undertaken, and re-route his ship to land on an uninhabited planet. The vessel, however, is pulled off-course, and he lands on a planet inhabited by violent factions, with weapons and monsters that can hurt him. He is forced to serve as a gladiator with a small band of outcasts, for the amusement of a planet-wide audience. He soon decides to use his band of warriors for other pursuits.
In my opinion, this one smacked of a Conan novel, with the Hulk as stand-in. Although I enjoyed this one more than I have any of the Conan novels.