In the wild Lebombo Mountains of South Africa, Ralph and Robyn are on the run from the nefarious Josef Gerhard. His beastly man-made predasaurs have unleashed a deadly virus and only the Ballantynes have the evidence to prove it. They need to regroup and plan their next move if they want to stop him before it's too late and find a cure for the virus. But deep in the forest, dangers lurk; poachers are circling, and Gerhard has a brand-new creation he wants to show off, if he can lure the Ballantynes to its lair... Can they outrun him in time to expose his monstrous crimes? And more importantly will they make it out of the serpent's lair alive?