There is something missing from our world. The amazing animals that time has left behind. But what if we can bring them back? What if extinction didn't have to be forever? We're going back in time on a safari with a difference, as wild life adventurer Nigel Marven plunges into pre-history to rescue creatures on the brink of extinction. His plan is to bring them back to the safety of the present and give them a second chance. On this episode of Prehistoric Park, Nigel intends to bring back a T-Rex breeding pair - but he hits some snags. Welcome to the ultimate wildlife sanctuary. Welcome to Prehistoric Park. (Or, when Marivn goes back in time to save prehistory, the T - Rex family he finds is not the one he bargined for.)