Prehistoric Park (2006) - 1x06 - Giant Crocodile

Nigel Marven saves his most dangerous mission for the series finale. He travels back in time to rescue a crocodile that experts believe may have grown up to 50ft in length by lunching on dinosaurs. The explorer also saves a baby elephant from being eaten by a tyrannosaurus rex. Meanwhile, the park keepers struggle to cope with caring for so many prehistoric animals.