While Karen continues to unravel her families past, her family uncovers some new information along the way. Big Chris finds out news that could jeopardize his freedom. Eli reflects on his relationship with his father and brings up the topic of divorce to his mother, Angela. Bills discusses the impact witness protection had on their gender identity.

Karen embarks on a journey from Staten Island to Arizona with her daughter Karina to visit her father, Sammy "The Bull" Gravano, after his release from prison; Jess attempts to let Billy back into Taylor and Joe's lives.

The O’Tooles’ private investigator shares his conclusion of his investigation of Billy’s death. Karen struggles with the unexpected outcome of Xavier’s appeal. CP and his family stress over the disparities of the prison healthcare system.

Paulie and Karina's relationship is tested. Jess introduces Taylor and Joe to her new love interest. Gina continues on her path toward clearing her record, while CP focuses on work and Dennie has a visit with her aunt to track down her biological father.

A shocking loss turns everyone's world upside down. Karen and Karina are faced with a tough decision…will they leave Staten Island for good? CP reunites with his father as he gets out of prison.

While in New York for Billy's case, Bills reaches out to an estranged family member; Big Chris finally receives surgery to remove his cancer, however his road to recovery continues to be an ongoing process.

Bills connects with Dana in person for the first time and updates her on the case; new information is uncovered in the cause Billy's death which causes renewed suspicion amongst the O'Tooles; CP and his family work together to help Big Chris.

While meeting for the first time since witness protection, Billy and Dana discuss the potential consequences of the case. The O'Tooles receive Billy's autopsy report and reflect on life after his passing. Angela tracks down Boris to discuss their divorce. The Gravanos continue to pursue freedom for Xavier. Meanwhile, the Laroccas adjust to the whole family being together again for the first time in years.

After 20 years of being in witness protection, Billy decides to go back to Brooklyn to aid in his father's case alongside Bills and Layla; the O'Tooles try to mend their family traumas after Joe and Taylor's altercation.

Joe learns his fate after his court date, while Billy meets Taylor's boyfriend. Karina's relationship with Paulie comes to a head. Dennie starts to pursue getting in touch with her biological father and CP decides to get serious about his future.