The stars of "Diff'rent Strokes" and "Hello, Larry" get together in a special, hilarious hour in which Phillip Drummond realizes that the purchase of a Portland radio station could mean the loss of a job for his old friend Larry Alder. **Part two originally aired as an episode of "Hello, Larry".

Willis becomes the middleman in a police effort to halt use and trafficking of drugs at his high school.

Kimberly's efforts to help a pregnant girl friend, have Willis and Arnold convinced the Kimberly's the one expecting.

Willis accompanies Arnold as he sets out to withdraw some money from his bank account to pay for his first ""real"" date, but two bank robbers force a change of plans when they attempt their own, very large withdrawal, in the first episode of a special two-part story.

After Arnold fails to measure up to the demands of the basketball, baseball and volleyball teams, Drummond convinces the boy to try football on for size and then pays the coach a clandestine visit to ensure Arnold a place on the team.

Kimberly must face the biggest decision of her life -- whether to spend a ski weekend with a popular boy or turn down the opportunity to get away on her own and remain, in her mind, daddy's ""little girl.""

Arnold and Willis face a puzzling dilemma -- how to tell Drummond that the award he worked so hard for comes from a health club with a ""restricted membership.""

Does Drummond have a third son, there's a young man at the door who claims he does and that he is.

Arnold has his day in court when an unfortunate ""train"" of events puts him at odds with a less than understanding merchant.

Arnold's excitement at being one of a small group of students in an exchange program with an all-white school is turned to fear by a threatening phone call from a zealous busing opponent.

Willis has the normal jitters on his first day of high school, and in his hurry to make friends, hooks up with a bad group, goes overboard to impress them, and, for his efforts could wind up in jail.

Drummond offers himself and his company airplane as hostages to protect Arnold and Willis, but his sons' future hangs in the balance when the robbers announce their own very different choice of hostages, in the conclusion of a special two-part story.

Willis and Arnold turn the Drummond household upside down as they try to prove to their old Harlem neighbors -- and themselves -- that they haven't lost tough with their cultural roots.

Arnold is elated when he's accepted into an ""elite"" club at school, but his membership could lead to consequences far beyond his wildest dreams when he learns he must commit a crime as part of his secret initiation.

Arnold's big plans for his first real ""date"" are quickly deflated when parental-imposed restrictions threaten to ruin his encounter before it ever gets off the ground.

A quick-thinking, fast-acting Willis saves Arnold from a near-fatal accident and in doing so unleashes an adoring monster who dedicates his life to repaying his ""hero.""

Arnold falls head-over-heels for a temporary housekeeper and embarks on a romantic scheme he hopes will make her a permanent member of the Drummond household.

Arnold tries a regimen of stretching exercises and a change of diet to speed his growth, but Drummond finds he must go to a very special source to get the boy to accept that he will never be tall.

Arnold's poor dental checkup and a visit by Drummond's health-conscious sister, Sophia, launches Drummond on a campaign to have ""junk"" food machines banned from Arnold's school, even though Arnold's drive for his class' presidency may depend on keeping the machines in place.

Through Blair's makeup artistry, 15-year-old Kimberly discovers she can pass for 20, but when she accepts a date with a 25-year-old and the passes start flying, she finds there may be more to being older than looking it.

Drummond and his sister Sophia inherit a prime piece of land in Harlem from a long lost ancestor, but their plan to dedicate it to a cultural center in his name could spell disaster if the truth of their ancestor's life gets out.

When Willis takes his steady girl friend for granted, his selfishness sends her out with another guy -- who won't ignore her, but there may be hope for happiness if a self-appointed Cupid succeeds in his plan.

A fire traps Drummond and his family in their penthouse and has him ""working"" overtime trying to protect them without letting on that there's anything wrong.

When his girl friend plans on taking a drive with someone else, a careless Willis -- refusing to be outdone -- gets an idea for a real joy ride neither of them will forget.

An adamant Drummond ignores sister Sophia's pleas to get involved in a group effort to combat air pollution, until Kimberly becomes victimized by the unnatural phenomenon.