Like its British counterpart, Life on Mars is set in 1973, telling the story of detective Sam Tyler (played by Jason O'Mara), who believes himself to be from 35 years in the future. Covering multiple genres, including thriller, science fiction, and police procedural, the series remains ambiguous regarding its central plot, with the character himself unsure about his situation. It has garnered critical praise for its premise, acting, and depiction of the 1970s, but suffered a declining viewership after its premiere. Life on Mars stars Harvey Keitel, Jonathan Murphy, Michael Imperioli, and Gretchen Mol.