My Three Sons
S10E23 Mister X
A mysterious bearded stranger leaves both the Douglas family and the police puzzled as Steve focuses on a crucial project at home. Before long, Barbara makes the surprising revelation that he is her ex-father-in-law.
Season 10 Episodes
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The First Meeting
Instant Co-Worker
Is it Love?
A Ring for Barbara
The Littlest Rebel
Two Weeks to Go
One Week to Go
Came the Day
Mexican Honeymoon
After You, Alphonse
Rough on Dodie
Silver Threads
It's a Woman's World
Table for Eight
Double Jealousy
Dodie's Tonsils
Who is Sylvia?
You Can't Go Home
Guest in the House
Charley's Cello
The Honeymoon is Over
Baubles, Bangles, and Beatrice
Mister X
Dodie's Dilemma
Love Thy Neighbor
J.P. Douglas