Watch on Soap2day. Ten years ago Shaun Smith was an enforcer for one of the biggest crime families in Liverpool, introducing urban terrorism to the British underworld. He sprayed up houses with machine guns, tortured people and used homemade napalm to firebomb his enemies. After spending 5 years in prison for firearm offences, he's trying to transfer those skills to the legal economy by working as a debt collector across northern England.