Water Rats

As the conflict between Madigan and Formica comes to a head, Frank's life hangs in the balance and he is forced to rely on his arch enemy to survive.

Sykes rescues a woman who falls off a paddleboat and as a reward, she wants to take him to New Zealand. A woman contacts Rachel with her concerns about her daughter's new boyfriend.

While the boat crews are kept busy responding to a series of suicide hoaxes, Frank and Rachel play host to a detective from Scotland Yard who has been sent to take possession of the diamonds.