公元2149年，由于过度开发、人口爆炸和过分的污染。地球的生态环境越来越差，整个星球正逐步的走向死亡。虽然科学家们想改变现状进行了大量的努力，可是现状却无法挽回。此时，有科学家提出一个理论，逆转地球的现状已经无法实现，不过可以尝试通过时间旅行回到过去，让现在的精英们回到原来，通过重塑人类的发展进程避免现在这种状况的发生。吉姆（杰森·奥玛拉 Jason O'Mara 饰）一家是第十批进行时光旅行的精英团队，当穿过传送门之时，全新的地球出现在他们面前。植被茂密，动物繁多，一派兴兴向荣的景象，让这群未来的人惊讶不已。可是，在这8500万年前的地球上，却没有想象中的那么平静，各种危机不断出现在开拓者的面前，他们将如何应对，他们能重塑人类的发展历程吗？In 2149, earth is nearly wrecked by pollution. Police detective Jim Shannon is jailed for illegally raising an extra child, Zoe. He's sprung from jail just in time to join his family on the latest 'pilgrimage', through a unique time-space-continuum rip, to Terra Nova, a colony run with modern technology in a dino age forest. Colony commander Nathaniel Taylor soon recruits as security professional Jim, who gradually finds out about some threats, notably from Saurian monsters, the 'sixers' and his own, bitterly estranged son Lucas. Meanwhile Jim's son Josh keeps getting into trouble, mainly due to his girlfriend Skye. His smart sister Maddy is in love with gentleman soldier Mark Reynolds.