The daily lives of the men and women at Sun Hill Police Station as they fight crime on the streets of London. From bomb threats to armed robbery and drug raids to the routine demands of policing this ground-breaking series focuses as much on crime as it does on the personal lives of its characters.

When two down-on-their luck thieves are tricked into protecting a 3000 year old magic Chinese artifact, they think they've hit the jackpot. But there is an army of martial arts killers who will stop at nothing, anything to get the artifact back and harness it's power. Now these bad guys have to become good in order to save the world.