Sam deals with twenty escaped souls with only one vessel to use against them. The Devil is less than sympathetic when Sam appeals to him as a son to a father. Meanwhile, the guys discover they've been evicted from their apartment, and Andi refuses to resolve things with Sam.

Sam tries to track down a 13th century Mongol warrior, but is more interested in tracking down the one soul who managed to successfully break a deal with the Devil. Meanwhile, Sock deals with his half-sister's new romance and Ben befriends a demon.

The Devil sends Sam to return a crooked boxer back to Hell, but the boxer asks Sam to make a deal. Meanwhile, Ben worries about letting the guys know that he's dating a demon, and the new manager of the Work Bench deals with Sock's scheme to get double-paychecks.

Sam discovers that he has a half-brother: Morgan another child of the Devil. The Devil wants to make sure Morgan turns out all right, and sends him to Sam for training. Meanwhile, Sock and Ted form an unlikely alliance, and Ben discovers that Nina is uncomfortable with him sexually.

Sam captures an escaped soul, only to discover that she has left a baby behind... a baby that the Devil wants at all costs. Meanwhile, Morgan tells Andi about his and Sam's mutual father.

The Devil sends Sam to the small town of Dove Hollow to deal with an escaped soul that grabs people with its giant tentacles. He promises it'll be an easy mission and Sam take the gang along. Meanwhile, Nina finds Ben clingy, Sock and Kristen explore their relationship, and Andi has second doubts about Sam.

Billy, Sam's newest target, convinces Sam to let him have sex with a woman for the first time before he goes back to Hell. Meanwhile, Sock tries to break the news of his relationship with Kristen to his stepfather, Ben tries to overcome his fear of flying for Nina's sake, Sam tries to get back with Andi, and Morgan tries to bribe Sam to capture a soul for him.

The Devil forces Sam and Morgan to compete against each other to recover an escaped soul: the winner sits at the Devil's right hand, and the loser loses... everything. Meanwhile, Sam tries to convince Alan how to break his contract with the Devil, and Ben tries to introduce Nina to his grandmother.

The Devil sends Sam to Sally, a Hellish tutor, so he can prepare for his role as the Devil's lieutenant. Sam figures Sally knows all about the Devil's secrets and sets out to seduce her. Meanwhile, an angry Nina goes after Ben for breaking up their relationship.

The Devil gives Sam a new assignment, to get someone to provide his signature on the deal he made with the Devil. Meanwhile, Nina and Morgan both move in with the guys, and the two start flirting with each other. And Sock prepares to throw a bachelor party for Ted.

Sam's newest mission is to capture his old high school biology teacher, Mr. Sprong, who everyone hates. However, it turns out Sam is mistaken about who his target is, and the gang now has to deal with a kidnapping charge. Meanwhile, Nina goes into heat and Ben feels that he must prove his manhood by defending her against a demon who is drawn to her.

The Devil puts Sam to work in a company which it turns out is dedicated to corrupting human souls. However, when Sam discovers it has an active portal to Hell, he realizes he can use the portal to get a message back from his father, a message that is the key to reclaiming his soul. Meanwhile, Sock dates a demon who can transform into anyone he wants.

Thanks to the scroll that Nina brought back from Hell, Sam learns the incantation he needs to challenge the Devil to a contest to free his soul. All Sam has to do now is find something he's good at. Meanwhile, Ben's grandmother insists that Nina undergo an exorcism, or he'll be banished from the Gonzalez family forever.