When a swarm of "leaf-gobblers" devours all the green food in the Great Valley, the herds move on to find another valley of greens and in the process, Littlefoot and his friends Spike, Cera, Petrie and Ducky wind up on an island in the middle of the Big Water. They're reunited with Chomper...Along with his nasty, hungry parents.
The Land Before Time V: The Mysterious Island
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.