Episode 1
Sergeant Danny Waldron and his armed response team shoot dead a hardened criminal.
Episode 2
After the shooting at the drugs house, DC Fleming increases the pressure on Danny Waldron.
Episode 3
DS Steve Arnott believes there is a dark secret in Danny Waldron's past.
Episode 4
Fresh testimony launches AC-12 back on the trail of a corrupt officer.
Episode 5
Loyalties are divided when DS Steve Arnott comes under scrutiny from his colleagues.
Episode 6
DS Steve Arnott is arrested on suspicion of murder but continues to protest his innocence.
