Young Marty Preston lives in a remote rural community. There's not much to do during summer vacation but shoot cans and hang out with Sam, who's not too bad even if she is a girl. But Marty finds a purpose to his life when he meets a beaten and frightened beagle he names Shiloh and decides to fight to keep him from being returned to his abusive owner.

"The great longneck migration": A bedtime story leads Littlefoot and his grandparents on a journey to a new land, where Littlefoot discovers someone who vanished before he was born. "Invasion of the Tinysauruses": While trying to obtain "Tree Sweets", Littlefoot runs into a tree and knocks down all the blossoms, which attract the tiny dinosaurs, Tinysauruses.