My Three Sons Season 10 Episode 23 Mister X 1969
6.359/10 by 32 users
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.
- Released: 1970-03-14
- Runtime: 30 minutes
- Genre: Comedy, Family
- Stars: Fred MacMurray, Don Grady, Barry Livingston, Stanley Livingston, William Demarest
- Director: Don Fedderson, George Tibbles
