Who is Marius Josipovic? Marius himself would like to know. He's feeling a pull toward the Bernhardt family. But he's not part of the family. He's a con-man. The chance to become more like a normal human being is enticing. It also scares him to death. This season all the members of the Sneaky Pete family explore their identity. It's a dangerous journey. They could lose themselves or their lives.

On the verge of starting fresh, Marius is abruptly dragged back into the role of Pete Murphy when two thugs–believing he's Pete–threaten to kill the Bernhardts if he doesn't take them to Pete's estranged mother, Maggie, and the millions she stole from their mysterious employer. Now Marius must tread a dangerous line to find the elusive Maggie, protect the family–who are still reeling from the death and dealings of the past week–and keep up the Pete con, all while finagling a way to ditch the thugs and keep the money for himself.

A con man on the run from a vicious gangster takes cover from his past by assuming the identity of his prison cellmate, Pete, "reuniting" with Pete's estranged family, a colorful, dysfunctional group that threatens to drag him into a world just as dangerous as the one he's trying to escape - and, just maybe, give him a taste of the loving family he's never had.