Suspect No. 1

On arrival they find a man with a bloodied head, who claims he's been attacked by a random stranger with a hockey stick.

A devasting rampage of targeted burglaries is terrorising the elderly and vulnerable around a single town. Detectives quickly suspect that the break-ins might be the work of one man, a man who is known to them. After days of investigation the detectives pull in a suspect, but will the detectives be able to break through his evasiveness and and take this dangerous man off the streets?

In the early hours of the morning, a man is found beaten on the side of the road with significant facial injuries and little recollection of what happened. There is no CCTV of the attack and no witnesses. As word of the vicious attack spreads, other officers think they know who the assailants might be. But can they find them and build enough evidence to confront them in the interview room?

A group of lads are on a night out when an innocent hello leads to a violent and shocking attack that sees one man critically injured and fighting for his life in hospital. For the police, this could turn into a murder enquiry if he doesn't survive. The detectives track down the potential attackers, but which one was responsible for the attack and will evidence stack up to secure a conviction?

Passers-by are shocked when a central pub erupts into knife-wielding violence. It's the latest outbreak of violence between gangs fighting a brutal turf war to control the sale of drugs in the city. In this special 90-minute episode, detectives must bring down the Norfolk based gang overseeing the sale of crack cocaine and heroin at street level. Can they stop the gang before someone is killed?

Detectives set out to bring down a Norfolk-based gang and find the man at the top.