When Becka Davis, a young woman, is terrified by a mystery attacker in her own home, the relief are shocked to learn that the assault was planned by a fellow internet chat room user with a score to settle. Jeremy Williams, a fellow user, is questioned about the assault - but it is discovered that not even her profile has been left sacrisanct. Smithy faces a terrifying ordeal during an undercover operation to expose gun runner Kieran Wallace.
- Alex Walkinshaw as Sgt Dale Smith
- Lucy Speed as DC Stevie Moss
- Rhea Bailey as PC Mel Ryder
- Christopher Fox as DS Max Carter
- Patrick Robinson as DC Jacob Banks
- Andrew Lancel as DI Neil Manson
- John Bowler as PC Roger Valentine
- Daniel Flynn as Supt John Heaton
- Micah Balfour as PC Benjamin Gayle
- Ben Richards as PC Nate Roberts
- Abhin Galeya as PC Arun Ghir
- Clare Foster as PC Millie Brown
- Dominic Power as PC Leon Taylor
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