Captain Cold's Cold Gun was created after Barry Allen was struck by lightning and taken to S.T.A.R. Labs, Cisco Ramon began secretly developing a special weapons that could be used to counteract Allen's super speed, in case the speedster had any malevolent intentions when he woke up from his coma. The gun had the ability to slow molecules down in objects, therefore making them extremely cold. Due to the lack of security at S.T.A.R. Labs, though, the device was stolen by a thief disguised as a janitor. Basil Nurbin The Thief then attempted to sell the weapon to Leonard Snart, who instead stole the weapon himself to use against the new hero.