Gerry begins to worry when Melissa doesn't return, so he decides they need to carry Leon back themselves. Meanwhile Simon and Lucy go off to check the monitoring equipment, when Lucy falls in a hole, which Simon says might be an animal trap. When they get to they find one tree burnt. David and Harry go fishing and return to discover that Chrissie had left the lid of the food and that ants infested the food, and bit Chrissie. After Shona treats Chrissie. Chrissie breaks down and tells them that she took some of the medicine out of the medical kit, as a joke. Gerry tells the others that they need to carry Leon back, nd the others agree. However the girls are upset to learn that they'll be left behind. While walking Leon gets up and says he is fine. A little while later he collapses and the guys put him back on to the stretcher. Simon, who is reading the map, gets the group lost. Which causes Gerry and the others to get upset, because the jeeps are one and a half miles away (the other sid