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".

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.""

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.

Arnold's ecstasy over meeting his hero Mr. T goes from elation to emulation when the young girl he's trying to impress snubs him in favor of his idol. Former bouncer and bodyguard Mr. T, who came to national prominence as Sylvester Stallone's opponent in ""Rocky III"" and was the star of the hit television series ""The A-Team,"" makes a special guest appearance as ""The A-Team's"" B.A.

Kimberly and Arnold break a long-standing family rule and face death when, on their return from a shopping trip, they find themselves short of cash and decide to hitch a ride home rather than call home for assistance.

Hitchhiking leads to kidnapping for Arnold and Kimberly, but Arnold escapes and he is so disoriented he is unable to remember the location of the kidnapper's apartment so that the police can rescue Kimberly who's till being held captive.

Drummond's provided with police protection of a most unusual kind after his charitable philanthrophy leads to a $1,000,000 extortion threat against him.

Maggie's reaction to a proposed pre-nuptial agreement threatens to hamper Phillip's happiness -- but could eliminate Arnold's fear about ""inheriting"" a strict new mother and a pesky little brother.

Although Arnold boasts he held his own in a mugging, Drummond fears the incident goes deeper than Arnold will admit and becomes concerned when he finds Arnold has sought a dangerous method of protection.

Arnold and Sam's new friendship with a street performer gets mired in fear and confusion when they discover she has epilepsy.

Arnold and Dudley succumb to peer pressure and ignore warnings against cigarette smoking, only to have the harsh realities brought to light by Dudley's father, a chronic smoker.

Arnold unwittingly solves his father's dilemma -- trying to make romance and finance go hand-in-hand -- when Drummond finds himself falling for an attractive local television aerobics instructor that his company is attempting to turn into an international success. Veteran Broadway and television actress Dixie Carter is introduced in the role of fitness instructor Maggie McKinney.

When Arnold and Sam creep through the crevices of the neighborhood's haunted house they find the ghost boasts a bounty of surprises--the biggest being a love for people and contempt for war.

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

Sam is taken aback when he realizes his new ""buddy"" is a girl, but Mr. Drummond is even more dumbfounded when the kids want to have a sleepover.

When Kimberly starts a campaign to open the school's Lettermen's Club to female membership, an embarrassed Willis retaliates with chauvinistic aplomb by becoming the first male contestant in the Senior Class Beauty Pageant.

Arnold's joy over being saved from an explosion by ""Knight Rider's"" David Hasselhoff quickly turns to dismay when he learns his father is getting married and a little brother comes along with the package.

Drummond's surprise meant to encourage an Olympic hopeful felled by a tragic accident backfires when the young man instead becomes embittered at meeting the 1984 Men's Olympic Gold Medal-winning Gymnastics Team until Willis and Sam take on the challenge of setting things right.

Kimberly returns home from school in Paris to surprise Drummond on his birthday prompting Arnold and Willis to try and match her special gift, they decide to change their name to Drummond, until Willis suddenly has second thoughts.

A family whose little boy died, forces the father to kidnap Sam, who is shopping for some snacks in a grocery store. After the kidnapping, the man threatens to kill Sam's parents if he attempts in any way to escape.

Arnold is disgruntled over being partnered with archenemy Lisa in photography class but his frustration soars when the two are accidentally locked together in the basement darkroom.

In a quest for religion started by Maggie and his father, Arnold thinks he has found it after attending an impressive bar mitzvah where his friend ""Becomes a man"" at age 13.

The money for the National Wheelchair Games that Arnold's class has raised and entrusted to him is missing--leaving Arnold embarrassed and his family ""in the dumps.""

Entrepreneur Arnold reluctantly allows Sam to be a part of his new scheme, when Sam realizes only Arnold will reap the profits, he breaks up the partnership and becomes the competition.

A date with a gorgeous girl has Arnold walking on a cloud, until he learns she was bribed by Willis to go out with him.