Collects Lockjaw and the Pet Avengers Unleashed #1-4, and Tails of the Pet Avengers: The Dogs of Summer #1.
*Once upon a time, in a world of super heroes and villains, there lived a team of animals that saved the universe - and no one knew it. These creatures asked not for fortune or fame, merely to help the humans that pet them. But a new threat to the world has arisen, which only they know of, that could change everything - and kill one of them. Join CHRIS ELIOPOULOS, IG GUARA, and CHRIS SOTOMAYOR for an epic tale of adventure, courage and sacrifice.
*Source: marvel.com