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.

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.""

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.

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.""

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

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

When Arnold is in trouble for putting his goldfish in Mr. Drummond's hot tub, Willis insists that it is wrong to convict him without a trial. The whole family, with Mrs. Garrett as judge, comes up with an important verdict.

Mr. Drummond's intention to marry an attractive widow doesn't meet with his children's approval, and Arnold, Willis and Kimberly devise a scheme they hope will turn his ""romantic"" proposal into a disaster.

Arnold has appendicitis and Drummond has to deal with the bigotry of Fred Tanner, a potential housing project investor whose daughter is the key to getting Arnold to sit still for the operation.

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.

In order to earn the money to buy disco skates, and to prove a point to Mr. Drummond, Willis gets a job...but is fired on his first working day.

The Drummond household's curiosity over Mrs. Garrett's new beau turns first to surprise and then to alarm. Mrs. Garrett is in a dither over her first date with Leon, especially when it is followed by a very important question.

Willis' fishy version of the facts of life leaves Arnold with misconceptions and Mr. Drummond on tender hooks. Arnold repeats his ""knowledge"" to a neighbor's daughter, but the girl's mother is not amused.

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.

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.

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.""

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.