Three's Company
When two single girls need a roommate to share their Santa Monica apartment, they decide to offer a room to the guy they find passed out in the bathtub after the going-away party for their last roommate. Hijinks ensue.
S5, E17
And Baby Makes Four
Lilly the barmaid is pregnant and deserted by the father, so Cindy vaguely complains to the roommates about men and pregnancy. As a result, Jack and Janet think Cindy is the one pregnant.
S5, E18
The Night of the Ropers
The Ropers make a surprise visit after their latest spat. Jack and Janet try to get them back together again.
S5, E19
Double Trouble
When Furley's attractive niece is visiting, Jack wants to go out with her but can't because Furley thinks he's gay. So Jack pretends he has a lookalike brother visiting from Texas named Austin. Furley buys it, but things get complicated.
S5, E20
The Case of the Missing Blonde
Jack and Janet come home and find the apartment all a mess. They can't find Cindy. They learn that there was a commotion earlier. They assume something happened to her so they try to find her.