When a homeless kid is trapped in a pylon in the harbour, the Water Police are horrified to discover a dead body floating in the water beside him. While Blakemore makes it her responsibility to ensure the homeless boy is taken care of, she begins to develop a relationship with the boy's lawyer, Gillian Swain. Meanwhile the Detectives unravel the mystery of the body found the pylon.

Holloway and Goldie's partnership is shaken when a third detective, Michael Reilly, is assigned to the Water Police.

Gavin Sykes is taken hostage by a young man with a desire to be a cop for a day.

Jack believes he has discovered the identity of Goldie's killer, but his only clue may just slip through his fingers.

Jack hands in his badge and turns vigilante in order to find Goldie's killer.