An
Akita puppy named Rock lives in a secluded cabin with his mother Shiro, a protector beloved by the forest animals. One winter night, a wily fox named Akamimi challenges Shiro and leads her to a mountain belonging to his boss Killer, a notorious
Bengal tiger, who attacks and mauls her to death. In the spring, Rock mourns the loss of his mother and vows to get revenge. He travels to a city and finds a troupe of street dogs, who agree to help him. Rumor spreads back to the forest that Rock has raised a large army to challenge Killer, so he dispatches Akamimi to send Rock out to sea in a barrel. A girl rescues him, however, and Rock lives with her. Meanwhile, the forest animals––including Killer and Akamimi––are captured and put into the city zoo. Word reaches Rock, now an adult, that Killer is still capable of terrorizing the other animals, so he travels back to the city and rejoins his gang. Together with his forest friends, they summon dogs from around town and challenge the large zoo animals. Eventually, Rock and Killer duel on a speeding
rollercoaster, and Killer plummets to the ground. With everyone free from danger, the dogs march down a city street in celebration. == Cast ==