After a brutal murder, the devastated Hassel decides to assemble his own investigation.

Hassel draws attention from Internal Investigations and from his family, as his obsession with Ruda's murder draws him deeper into the abyss.

The hunt for Ruda's killer leads Hassel into uncharted territory; not knowing whom to trust, he finds himself seeking advice from a renowned criminal.

Vida and Hassel's relationship begins to break down; a tireless search leads the detective to a new suspect.

As the internal investigation intensifies against Hassel, it appears Andra may hold the key to the investigation into Ruda's death.

Nidal's internal investigation becomes compromised and Vida's father is released from prison; the lines between Hassel and Bosco become blurred.