Chance's past comes into focus when he recruits FBI Agent Emma Barnes to help him stop his former partner from assassinating a visiting foreign dignitary. Meanwhile, Guerrero tests out a familiar face as a new recruit to the team.

When Chance's former boss makes a move to bring him back into the fold, flashbacks reveal the events that lead to Chance, Winston and Guerrero's unlikely partnership.

When Ilsa's friend is held hostage, Chance must turn to the only person he knows has information to help rescue her: his archenemy Baptiste, who is currently banished to a Russian prison.