Gina's singing career is re-ignited when her latest boyfriend gets her a gig in Whitby. It's a big success - until Whitby CID raid the club and find drugs in Gina's purse. Convinced she is being framed, Mike and Jackie begin investigating and come to blows with two superior officers. As Mike uncovers a web of secrecy that surrounds the Blue Parrot club, Gina learns that the line between allies and enemies can be very blurred indeed. Meanwhile, Ventress falls asleep whilst on night watch, and the next morning, awakes to find himself on a train in Crewe. Elsewhere, old enemies Greengrass and Blaketon form an unlikely alliance when David is conned out of all his money.