Frank refuses to drop the investigation despite the seriousness of the situation. Svend-Erik tries to help him. Teresa's trainee is revealed and Sara approaches the one who ordered the murder of her and Frank's parents.

Sara and Frank are seeking a witness to the Bagger trial, and the one who ruled Waldman in the '90s is beginning to emerge. Waldman is on the war path and Frank has to hide, which puts Patricia at risk.

Rex Bagger has to go to court, and Frank has the opportunity to interrogate someone who knew his father. The leash is tightened on Waldman who cannot be trusted. Sara is forced to go behind Frank's back.

A trail leads Frank back to the murder of his parents. For the sake of her son Liam's safety, Sarah wants everything to stay as before and asks Frank to stop the investigation, but he refuses.

Frank digs his grave even deeper and finds an ally in Svend-Erik. At the same time, Sara is in trouble. The clash between Waldman and Ayalas reaches a peak.

Svend-Erik Wisén warns Frank, who now understands that Thomas Waldman will not let go of what happened to Terese. Frank's sense of justice risks bringing him out into deep water.

Frank has a bad conscience because he and Sara got Terese in for possession. Sara questions Frank's choice to stick his nose in cases he shouldn't, and is nervous about his next move.

Frank has been released from prison and is a newly baked father. He just wants to get on with life, but Patricia is worried about her daughter's safety. Sara gets new information that Frank responds surprisingly.