The tale of four huge but huggable dinos who visit New York City to make millions of children's dreams come true. With his IQ-boosting 'Brain Grain' cereal, the time-traveling Captain New Eyes transforms Rex, Elsa, Dweeb, and Woog into thinking, feeling, talking creatures.

Meet Barney's newest dino-friend, Riff! Riff is new to the neighborhood, so he decides to start a 'Best Friends Club'. It's a special club where its members can do anything they like!

Petrie is having a difficult time preparing for "the day of the flyers" a very important day for all the flying residents of the Great Valley. The young flyers must participate in a very precise flying exhibition to prove they are ready to fly with the adults. Always nervous when flying, Petrie has even more trouble flying with his sibling in precise group formations. At the same time, a newcomer has Littlefoot and his friends trying to help him figure...