Leon: Sam and Sock capture a man named Leon who escaped from Hell, after he killed someone a hundred years ago. Leon talks to them after being captured in the "vessel" (in his case, a snow globe), convincing Sock he's changed. When he learns that even after helping them catch another escapee that Sam is still going to send him back to Hell, he holds them at gunpoint, threatening to shoot them. Source: SpoilerFix.com