Davy McFadden, keeper at Glenview Zoo, loves his animals. Each has been through difficult times, and Davy does his best to protect them. When it's suddenly decided to close the loss-making zoo, Davy is devastated. Led by Charlie Chimp, however, the animals have their own ideas. Going on a protest hunger strike, they even manage to communicate with Davy to ask him for his help. Together, they hatch a plan to save the zoo, outwitting those who wanted to close it and succeeding in returning those animals who are homesick back to their original homes.