小脚丫、斯拉、史派克和达达偶遇两只傻得可爱的黄种恐龙——卢发和杜发，它们要去遥远的百瑞谷，却在途中迷了路。卢发和杜发看上去十分笨拙，难以找到回家的路，于是小脚丫和它的伙伴们决定帮助它们的新朋友。一路上它们共同体验了生命中重要的一课——智慧的力量。当它们最终到达百瑞谷时，小脚丫发现黄种恐龙们即使不参照它的想法，依靠它们自己笨拙的方法也是可以回家的。

As the Great Day of the Flyers nears, the Great Valley's flying youngsters are eager to participate in the annual exhibition to show off their skills. Everyone, that is, except free-spirited pterodactyl Petrie, whose individualism causes problems when it comes to staying in formation. Enter his dinosaur pals Littlefoot, Cera, Spike and Ducky, who encourage Petrie to embrace his uniqueness.