故事发生在恐龙时代，一场大地震突然袭击了本来平和的土地，雷龙小脚板（加布里埃尔·达蒙 Gabriel Damon 配音）因为这场大地震不幸和家人失散了。通过苦苦的追寻，小脚板终于得知，自己要前往远在万里的恐龙乐园大林，只有在那里，他才能够和他的家人们团聚。就这样，年幼的小脚板踏上了旅途。 一路上，小脚板结识了很多和他经历一样的小恐龙们，目的地相同的他们结为了旅伴，互相鼓励帮衬着前进。在这场盛大的冒险途中，小脚板迅速的成长，学会了各种自我保护的生存技能，同时也体会到了友情的珍贵。

This time, while building a hideaway in their new home of the Great Valley, Littlefoot and the gang rescue a mysterious egg from two scheming egg-nappers and make a starling surprise - and new friend - when the egg hatches.

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.

Littlefoot befriends with a mysterious, fun-loving dolphin-like creature named Mo, who is trapped in "new water" caused by heavy rain. The gang then goes on an adventure to the "big water" to bring Mo home.

Littlefoot and his pals set off in search of a "stone of cold fire" that fell from the night sky. Since he's the only one who has seen it though, nobody really believes him. Petrie's uncle Pterano offers support only because he thinks the stone has secret powers and wants it for himself but conceals this from the rest. The young dinos must figure out the truth, before Pterano gets the power.

Legends claim that Saurus Rock keeps bad luck out of the Great Valley. Is it really true? Could the mysterious Longneck named Doc be the famous Lone Dinosaur, who can defeat a Sharptooth with his lasso-like tail To find out, Littlefoot and company must cross the great Valley and face a dangerous Sharptooth themselves!

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.

“小足”和它的朋友这次又有新的冒险了。在“小足”所居住的大峡谷外，有一块曾是干燥地，现今却变成沼泽的“神秘地”。在那里，有不少新的生物因为水分的供养而纷纷出现。“小足”和朋友原先都很安乐地住在大峡谷内，直到“小足”的爷爷因病而必须吃“神秘地”内的金色夜合花，为拯救爷爷的性命，“小足”和5只小恐龙得进入神秘地和坏蛋力拼，并及时采得夜百合。

由于恐龙谷缺水，导致大恐龙们反目成仇，“小足”和它四位朋友为此展开寻水之旅。一路上，小恐龙们历经暴龙的攻击，但它们仍勇往直前，成功地将遭受陨石阻塞的水源通顺，由于小恐龙的无私及勇气令大恐龙了解到共施共享的价值，而“小足”及伙伴们因此经验也学到了同心协力的意义。

When the dinosaur families get trapped in a valley by an ice storm, one family of "spike tail" dinosaurs volunteers to leave since they consume more food than the others. Meanwhile, the young dinos and a new adult dinosaur named Mr. Thicknose, head out to bring back their friend Spike, who has left his friends to be with members of his own species.