79. Skin Deep

McCann finds himself in the frame for robbery when a police baton with his call sign is found at the scene of a robbery in a jewellery store. A young black youth with a grudge and a family of racists both have reason to set him up, but both claim to be innocent of the crime. The young man's girlfriend, however, tells a different story – until Greig and Woods discover that the young man may have been set up as well.