When Superman and the rest of the Justice League are kidnapped, Krypto the Super-Dog must convince a rag-tag shelter pack - Ace the hound, PB the potbellied pig, Merton the turtle and Chip the squirrel - to master their own newfound powers and help him rescue the superheroes.

Ten years ago, Slade Wilson-aka the super-assassin called Deathstroke-made a tragic mistake and his wife and son paid a terrible price. Now, a decade later, Wilson's family is threatened once again by the murderous Jackal and the terrorists of H.IV.E. Can Deathstroke atone for the sins of the past-or will his family pay the ultimate price?