Brian reveals to Frank that he has evidence that links the drugs business directly to Waldman, and Patricia agrees to give Brian witness protection. Sara is in danger of losing Liam's confidence by trying to help Frank.
Frank wants to avenge Patricia's shooting so decides against Sara's will to try to get Waldman's greatest enemy, Daniella Ayala, out of prison to create a drugs war. As a result, a gulf opens up between the two siblings.
Frank secretly helps his former colleague Fredrika to prepare for Daniella Ayala's review. Waldman becomes increasingly nervous and orders an attack against Ayala.
Sara is finally close to raiding the workshop in hope of finding drugs and putting away Bogdan. But when her team moves in there are no drugs to be found.
Frank has been released from jail and is now the proud new father of baby Laura. Sara receives news concerning Therese Waldman's death, and Frank makes an unexpected move.
The notion of having framed Therese for drug possession prior to her early demise, haunts Frank. Sara questions Frank's choices and worries about what he is about to do next.
Frank finds himself pulled into the mess be created and finds an ally in Svend-Erik; Sara is put in a difficult position; Waldman and Ayalas' feud reaches its tipping point.
Frank follows a lead that takes him to his parents' murder; Sara tries to get everything back to normal for her son and asks Frank to leave the investigation.
When Rex Bagger goes on trial, Frank gets the opportunity to interrogate someone who knew his father; Waldman feels the walls closing in. Sara is forced to deceive Frank in order to protect her son Liam.
Frank refuses to drop the case but realises the severity of the situation. Svend Erik tries to help him escape from Waldman. Therese's killer is revealed, and Sara closes in on the person who ordered the hit on her and Frank's parents.