Arnold enlists a hustler to help him conceal a poor grade from Drummond, but the ruse becomes increasingly tricky to maintain.
Sam begins to hang out with Willis a lot more than with Arnold, making Arnold feel left out.
Arnold gets blamed when food starts disappearing from the house, but he soon discovers that Kimberly, who has developed bulimia, is the culprit.
Sam manages to get a popular children's show host for his birthday party, but is disappointed when his friends are more interested in the guest than in him.
Arnold and his friends find out that a racist group will be speaking on campus, so they decide to interrupt their assembly by throwing rotten food at them. When Mr. Drummond find out, he objects to Arnold's behavior.
Willis has a hard time adjusting to college, so he decides to drop out. However, he changes his mind when he finds out he's not the only one having trouble adjusting.
Mr. Drummond and Maggie are too busy to spend time together, which has Sam worried that their marriage may be in trouble. So he and Arnold put together a romantic evening for the two of them.
A tough guy wants Arnold to take care of his girlfriend while he is away, but the girl develops feelings for Arnold.
Conclusion. Sam manages to call home and tell Arnold where he is.
A father who suffers the loss of one of his sons decides to kidnap Sam to replace him. Part 1 of 2.
Arnold is mugged on his way home from school, and is so traumatized that he begins carrying a knife. In order to get him to open up about the incident, Mr. Drummond arranges for a crime-prevention demonstration at school.
Mr. Drummond takes Sam and Arnold camping, but is unable to compete with Sam's more-experienced dad.
Arnold's toy rocket crash lands at the Russian embassy and nearly causes an international incident.
Maggie and Sam surprise Mr. Drummond for his birthday by having Kimberly return from France to visit him. She brings a present of her own - the Drummond family tree.
Sam's scout troop is asked to work with a bunch of senior citizens on projects, but Sam's assigned senior citizen calls Sam a brat and refuses to help, so Sam has to put together a model airplane by himself.
Arnold and Sam try to keep a children's television show from getting taken off the air.
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