Squirrels are members of the family Sciuridae, a family that includes small or medium-size rodents. The squirrel family includes tree squirrels, ground squirrels, chipmunks, marmots, flying squirrels, and prairie dogs amongst other rodents.
An alien force had infiltrated human society, searching for the remnants of a powerful weapon. These aliens possessed a great mental ability that allow them to remain undetected by the human heroes of Earth, but animals are able to bypass this and detect them. Meta-talented dogs Cosmo the Space Dog and Lockjaw detected this threat and assembled a team of other heroes' pets to eliminate the alien invaders.
This team became The Pet Avengers.
