The Best Episodes Written By Declan Lawn

A young intern's first day at GCHQ coincides with a major cyberattack on the UK. To win her superiors' trust, she breaks ranks to analyse the malware code without permission and uncovers a greater threat missed by others.

Director: Peter Kosminsky

Writer: Declan Lawn

Mo’s side deal goes ahead, risking his relationship with his father. Tommy’s firearms exam is brought forward, and Stevie tries to convince Grace to come back to work.

Director: Gilles Bannier

Writer: Declan Lawn

The police ombudsman investigates the team after a disastrous night shift. Helen uncovers a scandal, while a crisis at home has Grace doubting her career choice.

Director: Gilles Bannier

Writer: Declan Lawn

The team work together after the shooting. Stevie clashes with the spooks, Mo learns the truth about his father, and Grace accepts that she might break her promise to Angela.

Director: Gilles Bannier

Writer: Declan Lawn

PSNI probationer Grace promises to help Angela, whose son has fallen in with a notorious gang. But with undercover agents watching, will she be able to keep her word?

Director: Gilles Bannier

Writer: Declan Lawn

The team scramble to deal with a bad batch of drugs while the McIntyres try to cover their tracks. Annie receives terrifying news that has her wondering who she can trust.

Director: Gilles Bannier

Writer: Declan Lawn