Two years on, Alison has completed her forensic lip-reading training with the police and is called upon to assist with a high-stakes surveillance operation involving Ruby Dowling (Emily Head), a woman caught up in a sophisticated money-laundering syndicate.

After being arrested when illicit cash is discovered hidden in her car, Ruby is released on bail back into a dangerous world where she finds herself trapped between police scrutiny and ruthless criminals. When she becomes the victim of a brutal attack, DI James Marsh (Andrew Buchan) and his team – DS Daniel Henshaw (Jonah Hauer-King), DS Ben Lawford (Nathan Armarkwei Laryea) and DC Lizzie Silver (Sasha Desouza-Willock) – are left searching for answers.

Tasked with decoding vital CCTV footage, Alison’s unique expertise becomes crucial to the investigation. But as hidden secrets begin to emerge, the case takes a disturbing turn, revealing threats far closer to home. With loyalties tested, trust beginning to unravel and dangerous criminals closing in, Alison discovers that uncovering the truth may come at a devastating personal cost – and could make her the next target.

The show will premiere on ITV and ITV X in the UK and will also be available on BritBox in North America.