Ben Tavassoli

The team must prove Neville’s innocence after Professor Cartwright is murdered. DI Karen Flitcroft from the Department of Policing Standards takes over the investigation. The investigation leads Naomi and Selwyn to Justin West at the preppers commune.

The team investigate the murder of a water taxi driver at the same time as Neville receives an anonymous letter warning them a murder is due to take place.

Molly returns to the U.S., but struggles to adjust to life without Barry. Meanwhile, Jamal deals with the loss of a close relative.

Barry waits to find out what his punishment will be for a failed coup, Jamal agonizes over the decision whether to execute him.