On the edge of the Great Valley stands mysterious Saurus Rock and twin Threehorns, Dinah and Dana, have run away to find it. Could the mysterious Longneck named Doc be the famous Lone Dinosaur? To find out, Littlefoot and friends must cross the Great Valley and face a dangerous Sharptooth themselves! Along the way they learn about change, acceptance and responsibility.

Snow falls in the Valley for the first time, puzzling and enchanting everyone. It's not long before they all realize that these fun and fluffy white flakes are threatening their survival. But Littlefoot, Cera, Ducky and Petrie are more worried about Spike. A visiting Stegosaurus herd fascinates Spike, who decides to join them on their journey to escape the freeze. When Ducky secretly follows him into the Mysterious Beyond, Littlefoot, Cera and...

Littlefoot spoils Nibbling Day and blames it on a herd of tiny mussauruses. The adults get angry and set off an avalanche that opens a tunnel and allows two velociraptors into the valley. Everyone must work together to chase them off.

Two great movies featuring Chomper.

"Fun takes flight with prehistoric pals - Littlefoot, Cera, Petrie, Spike and Ducky - in this all new, soaring adventure Parenting magazine calls 'charming and fun and dinoliciously daring! The Day of the Flyers, an important event for the flyers in the Great Valley, is approaching, and free style Petrie is having trouble flying in formation with his siblings. His friends try to help him, but a fuzzy newcomer named Guido gives the most helpful advice...

After his father doesn't return from an important journey, Littlefoot and company set out to find him. Filled with fun songs, surprises, and laughter, it's an inspiring tale of friendship and courage that the whole family will treasure.