Life on Mars - Season 1 - Episode 7
Sam demands a transparent investigation into the death-in-custody of small-time drug dealer Billy Kemble. He believes that if the police don't police themselves, the public will never trust them. When the explosive evidence of what happened to Billy falls into his hands, Sam has a huge decision to make. This evidence could tear the team apart. It's an opportunity to destroy his world and the people in it, but also perhaps an opportunity to get home.
About Life on Mars

Title: Life on Mars
First Air Date: 2006-01-09
Last Air Date: 2007-04-10
Status: Ended
Rating: 7.763/10 (from 280 votes)
Language: EN
Seasons: 3
Total Episodes: 16
Network: BBC One
Genres: Crime, Drama, Mystery, Sci-Fi & Fantasy
Production Companies: BBC, Red Planet Pictures
Synopsis
A detective chief inspector from 2006 is investigating a serial killer when he is knocked over by a speeding car. Waking up, he finds himself mysteriously transported back in time to 1973. Initially struggling to come to terms with his situation, he has to come to terms with the old-fashioned technology and attitude of the day, while figuring out how he came to be trapped in the past.
Cast

John Simm
Sam Tyler

Philip Glenister
Gene Hunt

Liz White
Annie Cartwright

Dean Andrews
Ray Carling

Marshall Lancaster
Chris Skelton

Noreen Kershaw
Phyllis Dobbs