Arnold's first date is held up when he and Willis are taken hostage during a holdup.
Drummond tries to negotiate with the bank robbers holding Arnold and Willis hostage.
Arnold takes a hobby shop to small-claims court over a defective electric train.
Arnold is so taken with the temporary housekeeper that he concocts a romantic scheme to make her Drummond's new wife.
Drummond is hospitalized with a serious injury.
While Drummond is hospitalized, his partner takes control of the business.
A telephone message has even Drummond thinking that Kimberly is pregnant
Drummond quietly intercedes when Arnold is rejected by a peewee football team.
Arnold helps Willis with a romantic intrigue
Drummond arranges for Arnold to see two people who might ease the boy's concern about his size.
Arnold helps the doorman finance a long shot at the race track.
The boys try to prove to old friends that they haven't forgotten their roots.
Arnold's poor dental checkup and a visit by health-minded Aunt Sophia spark Drummond's crusade to rid the school of junk-food machines.
A threatening telephone call casts a pall on Arnold's happy participation in a school program.
Disguised by makeup, 15-year-old Kimberly goes out with an "older man" who thinks she's ripe for romance
Arnold balks at inviting the girl next door to his party, but his attitude changes when he learns she's hospitalized.
Magician Arnold "disappears" when a writer visits to do a story on the household.
Drummond finds his new division director quite charming despite the fact that everyone else dislikes her
Drummond learns that he's heir to property in Harlem that was owned by his ancestor, a slave trader.
The trials of an immigrant seeking citizenship provide a lesson for Arnold, who has been failing in American history. A failed backdoor pilot for a spinoff series.
A classmate who fears he's about to lose his foster home cons Arnold into persuading Drummond to adopt him.
An unscrupulous baseball coach tries to get Willis to switch schools and join his team.
