The Flying Doctors - Season 6 Episode 6 Dangerous Games

Nancy contacts an old rodeo-champion, Ralph McRae, to help Nick. Vic is jealous, he thinks Nancy and Ralph have something going. Ralph doesn't seem to realize he isn't young anymore, so he tries some rodeo, but gets really dizzy. It turns out he was near a stroke, but will be alright if he takes care of himself. He doesn't want to at first, but when he ends up in hospital he comes to his senses. Vic and Nancy are fighting and Nancy falls down the stairs. It looks like she'll be completely paralyzed, but later it turns out she could get better, if she has surgery. It's a rather big risk, but she and Vic decides to go through with the operation. And it is a success.