这是一部关于恐龙的科教记录片, 北极：7千万年前。一个极端的世界。夏季的阳光变成了24小時严寒的夜晚。恐龙们不得不做出选择，勇敢的向南迁徙以寻找阳光。一段充满了暴风雪，火山爆发和致命狩猎者的危险旅程，一个年轻的埃德蒙頓龙开始了他的第一个千里迁移. 片中令人惊叹的CG动画 和精心构建的数码世界，可以說是真正的恐龙电影演变,令人震撼. The Arctic 70 million years ago. It is a world of extremes. Tropical summers of 24hr sunlight are replaced by freezing winters of continuous night. The remarkable dinosaurs that lived under the Northern Lights had to make a choice, brave the winter or head south to find the sun. Join Scar, a young Edmontosaurus embarking on his first thousand-mile migration. It is a journey for survival that is fraught with danger; blizzards, volcanic eruptions and deadly predators lie ahead. Meanwhile Patch, a juvenile Troodon, left alone in the North, must learn to survive in one of the harshest environments the Earth has ever known. This epic feature-length adventure portrays an incredible polar odyssey that actually happened but has never been witnessed before. Based on recent fossil evidence blasted out of the ice around the North Pole, the makers of ''Walking with Dinosaurs'' and ''Prehistoric Park'' are delighted to introduce you to an all-new cast of dinosaurs, from feathered tyrannosaurs to giant marine predators. Featuring stunning animation and a painstakingly recreated digital world, it can truly be said that the dinosaur film has evolved.
一度平静的斯沃罗夫小岛被弗林德·洛克伍德（比尔·哈德 Bill Hader 配音）的天才发明复食机所摧毁。最终他成功破坏复食机，并打算和山姆（安娜·法瑞丝 Anna Faris 配音）他们重建美好家园。这时候，弗林德最崇拜的偶像——丽芙公司老板切斯特 V（威尔·福特 Will Forte 配音）从天而降。切斯特是一个天才发明家，他的公司更是云集了全世界顶尖的科学家。切斯特邀请弗林德加入丽芙公司，并承诺带着岛民前往加利福尼亚，而他的公司将负责清理破败的小岛。为了成为幻想发明家，弗林德拼尽全力开展研发。与此同时，故乡却传来不好的消息。许多清理者被活着的食物所捕获，似乎复食机并未完全摧毁，并且朝着弗林德不曾预料的方向继续发展。 在切斯特的命令下，他和山姆、老爹以及其他伙伴们踏上了返乡的旅途，寻找解决麻烦的办法……
