Joining friends to explore a cave complex, Jason, Leon, and Naoko soon find they have a mountain to climb! With Ty gone, efforts to traverse the dank darkness of the subterranean labyrinth soon reveal a terrible truth! Beset by a bizarre arthropod army, it's all Jason and Naoko can do to stay alive, while, up above, Leon and Marina are forced to face a scorpion showdown! What a painful end scuttling ever closer, how will this crazy caper end?!