Gina's singing career is re-ignited when her latest boyfriend gets her a gig in Whitby. However, Whitby CID raid the club and find drugs in Gina's purse. Convinced she is being framed, Mike and Jackie begin investigating and come into conflict with two superior police officers. As Mike uncovers a web of secrecy that surrounds the Blue Parrot club, Gina learns that the line between allies and adversaries can be very blurred indeed. Meanwhile, Ventress falls asleep whilst on night watch. The following morning, he is shocked when he awakes on a train in Crewe. Elsewhere, arch-enemies Greengrass and Blaketon form an unlikely alliance when David is conned out of a recent windfall.