Mary's addicted to "Wheel of Fortune" and wants to become a contestant. When she learns that Lester's taking the family to Los Angeles on a business trip, Mary's excited.
In LA, Mary arrives at the contestant tryouts for Wheel. But is shocked that Sandra also wants to try out. During the interviews, the contestant coordinator learns that both Mary and Sandra are from Washington DC. Later in the hotel room, Brenda gets a telegram from the hotel desk and informs Mary and Sandra that they are going to be contestants, competing on a special "Neighbors edition".
Sandra and Mary are on the show, competing against Rusty, a fisherman. In the first round, Rusty spins $1,000 and calls a "Z", the girls are shocked that there's one Z. With that one letter showing, Rusty solves the puzzle "The Prisoner of Zenda".
It's the 3rd round. Mary has better luck racking up $20,000. She then buys a vowel (leaving her with $19,750), and tries to solve the puzzle "Santa Fe Trail" which is incorrect! Rusty solves it for $4,500 "Santa Fe Train" and ends up shutting out the ladies!
Back home, Mary is still depressed over losing the game show. But Lester cheered her up in front of her friends saying he lost the contract in LA while she lost the game show. Then he presents her with a trophy for world's best wife.