12 Season
380 Episode
My Three Sons - Season 10 Episode 23 Mister X (1972)
A bearded man of mystery confounds the Douglas family and the authorities alike, while Steve is working on a top priority project at home. Barbara soon identifies him as her former father-in-law.
- Country : United States of America
- Genre : Comedy, Family
- Studio : CBS
- Director :
- Cast : Fred MacMurray, Don Grady, Barry Livingston, Stanley Livingston, William Demarest, Beverly Garland