Michael and Lincoln enlist the help of Sheba and C-Note to catch Poseidon when Sara and her son are threatened; Whip takes a separate mission; T-Bag reveals a secret.

Cast: Marina Benedict, Christian Michael Cooper, Rockmond Dunbar, Mark Feuerstein, Robert Knepper, Chelsea Mae Leung, Devin Mackenzie, Wentworth Miller, Shaz Mohsin, Steve Mouzakis, James Neate, Amaury Nolasco, Dominic Purcell, Leo Rano, Sarah Wayne Callies