Mr. Roper decides to throw his wife a surprise party. He asks his former tenants, Jack, Janet, and Chrissy to help him. When Brookes sees him with them, he jumps to conclusions.
Jeffrey Brookes has a secret. His Uncle Bill is a free spirited "hobo" who has no interest in material things. To his horror, Bill shows up at his doorstep...but not before Stanley meets him and hires Bill to help around his place.
Helen really wants an electric organ but Stanley won't pay for one. Anne has an emergency and asks Helen to do her a favor by showing a buyer some property. An embarrassing situation may complicate things.
When Stanley is being inattentive towards Helen, she decides to make him jealous by pretending to have an affair with the gardener. Both Anne and Jeffrey Brookes decide to help out and also hire some other guys to pose as Helen's lover.
A man shows up and claims to be Stanley's son. Stanley admits to know his mother, but doesn't remember the night that she claimed to conceive her son. Roper goes to talk to a friend who was with him at the time to find out if the claims are true.
Stanley is jealous when Helen wants to reunite with an old boyfriend who is in town, so he tries to reconnect with an old girlfriend to get even with her. Also, David trades Jeffrey's model train set for Stanley's old inner tube.