Monday's Riddle! Leaps and Bounds...

Hello Riddlers! Here's a fun one- can you guess the theme? Get ready for some action, because it's going to be a super week ; ) ~ F

When you're in need, I'll swoop right in. Dressed really flashy and wearing a grin. By your side, should trouble arise, is where I'll be with my x-ray eyes. Sometimes masked and sometimes not- it all depends on what issue you've got. 

What am I? 

I already gave you a clue!


FEAR NOT THE UNEXPECTED