Detective Sam Tyler's world is about to be turned upside down. Moments after his girlfriend and colleague is kidnapped, Sam is knocked unconscious by a car and wakes up - in the year 1973...
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Sam's dogged pursuit of evidence brings him head to head with his DCI, Gene Hunt.
A fatal stabbing at a textiles firm leads to a shocking discovery for Sam.
Sam calls into question the ethos of his whole department when he takes on a local gangster. But does he realise the full consequences of this fight? And can Gene lay to rest a ghost from his past?
Sam and Gene investigate the murder of a Manchester United football fan.
When his mother's voice bleeds through from the present, Sam hears her say goodbye to him.
When a small time drug dealer dies in police custody, Sam is pitted against the whole of CID.
Sam has finally started to accept his new world and believes that he can deal with anything that it throws at him. Then he comes face to face with his 29-year-old dad, a small-time gambler caught up in a murder case.