The Thing ending / spoiler
Nauls disappears and is never seen again. Garry is killed by Blair who turns into the Thing. It destroys MacReady's detonator so instead MacReady throws a stick of dynamite at it. The building explodes. MacReady stumbles to a shack to find Childs there. They take swigs of a bottle of whiskey as the camera shows a wide shot of the camp in flames. Childs and MacReady sit around not knowing if the other is the Thing or not...
Submitted by Vigilant88
