On his latest expedition, Dr. Rick Marshall (Ferrell) is sucked into a space-time vortex alongside his research assistant (Friel) and a redneck survivalist (McBride). In this alternate universe, the trio make friends with a primate named Chaka (Taccone), their only ally in a world full of dinosaurs and other fantastic creatures. Can they all make it back to our world alive, and if so: Will Dr. Marshall can go from zero to hero with his discoveries?