Tom Butler

A computer with highly advanced artificial intelligence begins to kill in order to preserve its existence, after it is deemed too inefficient to continue controlling the workings of an office building.

Dr. Wells' former protégée -- who can manipulate sound waves -- returns to seek revenge; Iris starts a new job. Also, Joe asks Eddie for a favour -- and asks him to keep it a secret.

The detectives learn Danny had secrets; Detective Carver conceals things that could affect his ability to keep working on the case.

The murder case comes to a conclusion as Detectives Carver and Miller finally apprehend Danny's killer.

The town continues to turn on Jack, but he isn't the only one with a secret; Beth decides to confront Gemma.

As Carver's condition worsens, he has only 24 hours before he is pulled from the case; Beth seeks advice from Paul Coates; Susan Wright shares a secret.