All seasons

10 seasons - 311 episodes

Season 9 1965

30 episodes - Sep 11, 1965

Season 8 1964

30 episodes - Sep 23, 1964

Season 7 1963

30 episodes - Sep 25, 1963

Season 6 1962

28 episodes - Sep 26, 1962

Season 5 1961

30 episodes - Sep 1, 1961

Season 4 1960

28 episodes - Sep 17, 1960

Season 3 1959

26 episodes - Oct 2, 1959

Season 2 1958

30 episodes - Sep 20, 1958

Season 1 1957

39 episodes - Sep 21, 1957

This first season establishes the attorney’s reputation for composure and his sharp instinct for truth. Each episode revolves around a criminal case in which the accused seems doomed from the start. Mason, supported by Della Street and investigator Paul Drake, dismantles appearances: trapped inheritances, troubled marriages, false confessions, family schemes, crimes staged as accidents. Through methodical investigation and courtroom twists, he exposes the real culprit, often at the most dramatic moment.