Life On Mars sees 21st century cop Sam Tyler (John Simm) hit by a car only to find himself in the Manchester of 1973. The world of the nineteen-seventies is a confusing and frustrating place for Sam particularly his superior DCI Gene Hunt (Phillip Glenister) who himself is the very embodiment of the unrepentant politically incorrect man of the time. But perhaps if he can discover the reason he is stuck in this world he can find a way home...