Tipped off, Pearse diverts the truck however, the police seize the drugs as they're unloaded. Niamh admits Tar Le used K.Y.V. to remove waste.

O'Neill is hospitalised due to exposure to medical waste. Police raid haulage company K.Y.V., where O'Neill worked as a driver on Pearse's recommendation

Bruno is caught by police at Sanihaz, the medical waste facility Olatz had visited. He claims his cousin Tomas was responsible for the people-smuggling and murders.

An envelope Adama sent to his supervisor, Romero, goes missing.

Claire questions a hostile Alice while Jon and Claire investigate Adama's student residence, finding it ransacked by O'Neill. Separately, forensic accountant, Norah Dillon, discovers that Nick was funneling money into a Liechtenstein account, and CAB Detective Liam Boylan finds CCTV footage of a man arguing with Nick. 

When investigative reporter Olatz Alzola and her family are brutally murdered in Bilbao, DS Claire Wallace is drawn into a case that links their killings to a CAB raid in Ireland.