Selfish, separated parents Amber and Cameron are forced to put their starry-eyed career ambitions on hold when Amber suddenly finds herself homeless and Cameron begrudgingly agrees to look after their 6-year-old daughter.

The citizens of Waterfall City flee for the tenuous safety of Earthfarm, abandoning their city to the dangerous Outsiders - who discover the key to Dinotopias future and threaten its survival.