In 2006 Manchester, Detective Chief Inspector Sam Tyler investigates the abduction of his girlfriend and colleague, Maya, by a serial killer. Distraught and hyper-focused, Sam pursues the perpetrator alone, only to be struck by a speeding car. When he regains consciousness, the modern world has vanished. Sam awakens in 1973, wearing period clothes, navigating a gritty, smog-choked Manchester where computers do not exist, police brutality is routine, and forensic science is in its infancy.Disoriented and convinced he is either in a deep coma, suffering severe brain damage, or mentally descending into madness, Sam struggles to maintain his sanity while desperately trying to find a way back home. He is assigned to the Greater Manchester Police force, working under the formidable,
politically incorrect, and violent Detective Chief Inspector Gene Hunt. Gene operates on gut instinct and physical coercion, directly clashing with Sam’s modern, psychological, and evidence-based policing methods. Despite their constant ideological warfare, an uneasy mutual respect forms between the two men as they solve complex criminal cases together.As the series progresses, Sam is plagued by conflicting, surreal hallucinations. Modern television broadcasts, medical equipment beeps, and a voice he believes belongs to his modern-day doctor occasionally pierce his 1973 reality, urging him to wake up. Convinced that 1973 is a construct of his dying brain, Sam becomes obsessed with finding a catalyst to trigger his awakening. He navigates dangerous undercover assignments, corrupt local politicians, and personal entanglements—particularly with WPC Annie Cartwright, whose empathetic intellect bridges the gap between Sam’s modern sensibilities and the archaic attitudes of the era. Annie slowly helps Sam ground himself in the reality of 1973, complicating his desperate desire to escape.The
psychological tension peaks in the final episode when Sam receives a definitive choice. A message through a hospital monitor in his waking reality tells him how to pull the plug and return to 2006. Simultaneously, Gene Hunt and his team face lethal peril from a desperate criminal conspiracy, requiring Sam’s complete loyalty and intervention. Faced with a heartbreaking ultimatum, Sam realizes his life in 2006 was emotionally distant and hollow, whereas 1973 has given him purpose, true friends, and love. In a climactic resolution, Sam chooses to leap off a high building, fully embracing the 1973 reality. He walks back into the precinct to the cheers of Gene and his colleagues, finally at peace, leaving his fate ambiguous as they drive off into the sunset.