Claire and her CAB team are racing against time to uncover those responsible for the terrorist attacks prior to the Antwerp port agreement is agreed upon. But their discovery comes with a huge cost.

As Claire and Christian close in on hard evidence connecting Trestford to the bombings, Frances Swann executes a callous plan to force Bibi to Antwerp.

In the aftermath of a chilling attack in Ireland, Claire heads to Antwerp to make contact with a key witness. When Christian hits a dead end in his investigation, help comes from an unexpected source.

Bibi Brannigan's life hangs in the balance when a hitman arrives in Ireland. A PR disaster threatens Frances Swann's plans, forcing her to take drastic action.

DS Claire Wallace and CI Christian De Jong are shocked to discover who was behind the terrorist attacks, but as the body count grows, will they be able to prove it?

The new lead detective of Ireland's Criminal Assets Bureau faces an immediate challenge after a co-ordinated cyber-attack targets her agency and Belgium's Counter-Terrorist Unit, seemingly in connection to the Brannigan case. Bibi Melnick resurfaces with some new and crucial information unveiling dark details on how her father-in-law Richard ran his company Trestford and reveals there's a mole in CTU.