chunk: The creature assimilates Bennings, but Windows catches him outside before his metamorphosis is complete and MacReady burns the creature before it can escape. They discover Blair has wrecked all the transports and killed the remaining sled dogs. The team corners Blair as he is destroying the radio and locks him in an isolated tool shed. Copper recommends a blood-serum test to determine who is assimilated, but the paranoid men turn on each other when they find the blood stores have been sabotaged.