Philip and Virginia Wilson is going to examine a cave when an Aborigine, Winjin, appears and tell them to stay away from there or they'll die. Philip doesn't care but Virginia is frightened and begs Philip to not go in there. Winjin waves a bone and suddenly Philip falls down a hole and breaks his leg. Virginia run away to get some help and Geoff, Sam and constable Larry O'Connor come to get him to the hospital. They fix his leg and everything seems to be alright when Philip suddenly gets worse. Kate and Virginia are both convinced that Winjin and the bone-pointing had something to do with it, and Kate forces Geoff to talk to Dougie about it. Dougie takes Geoff to the cave again to meet Winjin, and then says that Winjins spirit is inside him and he can make Philip better. While Dougie is doing his thing Geoff tries a long shot. He believe it's something called histoplasmosis, a disease carried by the bats in the cave. When Dougie comes back from Philip he has the same bone with him ...