After Lawrence returns home from the seminary and announces that he's dropping out for good, things in the family starts to change.
When Timmy's ventriloquist dummy needs fixing, he decides to win in a poetry contest to repair it.
While Lawrence tries to apply lessons from a psychology class at school to analyze his parents, Mike presents a new microwave to the Cleary household.
To cover up a mess Eddie made, his girlfriend Wendi tries to distract Peggy.
Lawrence asks Eddie to take him for a practice date to prepare him for his date tonight.
Mike decides to give advise to Eddie when he concludes that the he is sexually active.
Kids decide to investigate a little more about, when Pat overhears his parents' debate about having another child.
Eddie forgets to get Wendi a Christmas present while Timmy receives a Christmas gift by mistake.
Mike asks his co-worker to help force the kid who broke the dining room lamp to confess.
Frank secretly helps in Timmy's musical show set's design.
Peggy is having thoughts of what to do with Wendi when she breaks up with Eddie and he becomes devastated.
When Lawrence and Eddie are called to serve in the Vietnam War, Mike and Peggy have conflicted feelings.
While Mike fears from Timmy developing insecurities from Peggy's meddling, Timmy receives a Valentine's Day card from a secret admirer.
Frank must start looking for the church keys he lost which he was entrusted with.
Peggy pursue on having candle making project because of her talent in reusing wax from birthday candles.
Peggy realizes that Wendi and Eddie are unsupervised in the house when Wendi's parents split up and left her in the house alone.
When Timmy doesn't hear a response after being in a TV contest show, he deicides to take matters in his own hands.
Mike asks Wendi to help find Peggy, when she walks out with no explanations from the grocery store.
Eddie and Joey are decisive on getting tickets of Led Zeppelin.
Mike, with the help of Lawrence, tries to talk to Timmy about his new inappropriate hobby.
In order to get Timmy perform in Pioneer Day Carnival, Joey acts as his manager.
Peggy gets concerned about a secret matter after knowing the donations at the their church are low.
After Lawrence decides to move out, Peggy is struggling with this decision.