Sam and Stuart investigate the stabbing of a recently released armed robber, who is found aboard his houseboat alongside a stash of cocaine. With two possible motives for the attack, the pair visit one of the robber's victims, who was crippled after being shot during a post office raid. However, evidence soon points towards his son when a mobile phone belonging to him is found at the scene. Meanwhile, following a spate of bad press reports, Heaton demands high visibility patrols of the Jasmine Allen estate. Tony and Leela find themselves investigating three thefts, and discover that a young boy, who is trying to propose to his girlfriend, stole the items as he was unable to pay for them.