For two days in 1943, Sgt Brett Cooper has been walking the Australian outback. Hungry and thirsty, he begins to see things like a pool of water and the Doctor, whom he believes is another figment of his imagination. Split between feasting on Amy or the Doctor and Brett, the Mirrorite divides itself into two halves, each an independent hunter. As each creature approaches its prey, the Doctor gives the command and both halves of the Mirrorite are captured in a force-net. The net would not have been able to hold a full Mirrorite, but divided, the Mirrorite is weakened.