Old Enemies

S16, E62: When the relief carry out a raid on a nightclub, the pink cockatoo, Carver is suspicious after he suspects that a face from his past was at the scene. Later, he stops a driver who appears a little the worse for wear, and discovers that it is none other than his former boss, DS Ted Roach. Carver encourages Roach to provide information on Mickey Owen, the owner of the club, in return for being let-off the drink-driving charge. However, his leak to the police soon turns out to be the driving force behind a harsh beating. Meanwhile, Quinnan uncovers a body on the marshes, and Lennox discovers a link to the nightclub.