Littlefoot and his friends the gang in their next when a swarm of leaf gobblers had destroyed their homes and this forces them to find a new home but yet find an mysterious island.

While Jane Holman is driving with her two sons, she accidentally runs into a drifter, Jack McCloud, who breaks his leg. Being responsible, Jane invites Jack, and his dog, to stay at her home until his leg has healed. Jack struggles to adapt their lifestyle, and finds himself loved by the family.