In the future, time travel will be possible. Organized crime has discovered a particularly innovative use for the new technology: it sends people from the future to the year 2046, where they are killed by loopers and their bodies disposed of. The best of his guild is the ice-cold Joe Simmons, who one day finds himself faced with the dilemma of being confronted with an older version of himself. He lets his older self live, but in the present there is not enough room for two Joe Simmons at the same time.