Jackson Brooks's life with his fiancee is thrown into turmoil after his childhood friends want him to help them avenge a 25-year-old wrong.

Jackson agrees to help Gil and Shawn, but doesn't tell Marina about it. He's not aware that they're the subjects of a homicide investigation, however. In other events, Jackson's former enemies are now on his trail.

Gil goes rogue during a surprise visit with an old guard from Quitman, but his behavior causes Jackson to question whether he can be a part of the revenge plan.

Jessie decides to become involved after she learns what happened to the guys at Quitman. In other events, a shocking secret about Det. Winters is revealed.

Jackson, Gil and Shawn make an emotional return to Quitman in search of answers about the disappearance of a former inmate. Meanwhile, Marina is excited to land a big new client Diana Stockman at the law firm.