Okay, so Troy and Abed, two community college students, told a scary story where two military pilots crash landed in the woods by a mad scientist's cabin. The scientist (depicted as their elderly friend Pierce) sewed them together while they were unconscious from the crash. But what he didn't realise is that connecting their brains together gave them psychic powers. So then they did weird surgery on him for revenge. They put his butt on his chest and swapped his hands and feet. This is him after he wakes up from the surgery.