S1 E1 · Thou Shalt Not Kill

Tom Quinn and his MI5 team search for a pro-life terrorist who targets abortion clinics.

S1 E2 · Looking After Our Own

Tom and Helen's safety is compromised when an undercover operation spirals out of control.

S1 E3 · One Last Dance

Zoe finds herself in the middle of a siege while undercover at the Turkish Consulate.

S1 E4 · Traitor's Gate

President Bush's visit to the UK sparks a wave of anti-capitalist demonstrations.

S1 E5 · The Rose Bed Memoirs

The potentially scandalous memoirs of disgraced MP Hampton Wilder have gone missing.

S1 E6 · The Lesser of Two Evils

The leader of an Irish splinter group promises Tom information on a planned attack.