In the future, an outbreak of canine flu leads the mayor of a Japanese city to banish all dogs to an island used as a garbage dump. The outcasts must soon embark on an epic journey when a 12-year-old boy arrives on the island to find his beloved pet.
When a car hits young Victor's pet dog Sparky, Victor decides to bring him back to life the only way he knows how. But when the bolt-necked "monster" wreaks havoc and terror in the hearts of Victor's neighbors, he has to convince them that Sparky's still the good, loyal friend he was.
After his mother’s death, Zucchini is befriended by a kind police officer, Raymond, who accompanies him to his new foster home filled with other orphans his age. There, with the help of his newfound friends, Zucchini eventually learns to trust and love as he searches for a new family of his own.
