Krypto the Dog is Superman’s best friend, possessing the same otherworldly abilities as his master. Together, they bravely fight crime in Metropolis. But when Superman and the other members of the Justice League are kidnapped by unknown villains, Krypto must train a new team of helpers: a motley crew of animals from an animal shelter who have unexpectedly gained superpowers. Will the furry League of Super-Pets be able to save Superman—and the whole world along with him?