Members of Falkirk's UFO club, head to Australia to an abduction hot-spot. Armed with video cameras and hoping to spot something extraterrestrial, they are met by Melissa, an Aussie ranger, who will accompany them to the outback.
Sarah tells the group about her UFO encounter. The others don't believe her. Leon is bitten by a red-belly black snake. Shona goes to get the anti-venom from the medical kit, only to discover it is missing.
The group have a hard choice to make over how to save Leon after being bitten by a deadly snake. In the end it is decided that Melissa must make the trek across the outback to the road.
The boys are stuck in the bush, the jeep mysteriously disappeared, though Leon has now survived thanks to them finding the anti-venom in a ring of stones.
Chrissy follows Simon who has run away, claiming that he is following Gerry and Melissa. Meanwhile, the others find mysterious markings and a burned out crop circle in the ground.
Harry recovers and tells Lucy that he suffers from epilepsy and left his medicine back in Scotland, so he can be stronger like the other guys. Dingos invade the camp and Shona and Leon take refuge in a tree.
Sarah stops David from doing something stupid. Which causes him to go off at Sarah. The next day Chrissie wakes up to find her self alone in the canoe. She goes a shore and finds Simon who tells her the canoe has sprung a leak.
Simon and Chrissie decide to stay one more night at the camp sight before they leave. Meanwhile the others get lost and David and Leon continue to fight and argue. Shona shows Sarah the capsule.
The man, Joe, takes of his bike helmet and asks them to take them to their leader, which causes Simon to faint. Joe goes over to Simon and pulls a couple of ticks of Simon.
When asked how he knew about the diamonds Arnie says when they said they caught a man called Joe he put two and two together. Sarah points out that she never said anybodies name.
