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.

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

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.

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.

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.

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.

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.

At 16, Willis thinks he's man enough and old enough to ""top"" a few drinks with the guys, but Drummond's objections send Willis storming out of the house intent on proving his father wrong.

Arnold and Dudley's ""friendship"" with a local merchant reaches a dangerous turning point when, unbeknownst to the boys, the man, who is actually a child molester, is about to make his move.

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.

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.

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

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.

Unaware that he's being lured into the carefully crafted trap of a child molester, Arnold eagerly agrees to perform a simple task in return for an overly generous reward from a ""friendly"" neighborhood merchant.

Kimberly is overjoyed when Olympic Gold Medalist Dorothy Hamill sees great promise in her as a competitive figure skater, but she's even more astounded when Drummond agrees to let her leave the New York ""nest"" to train full time with the award-winning skater -- in Los Angeles.

School ""thug"" Larry coerces Willis into teaching him how to ""make it"" with girls, but things go from bad to worse when Larry's first target is Willis' sister Kimberly.

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.

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.

Arnold and his buddies fabricate a ""little white lie"" in an attempt to get rid of an overly-conscientious substitute teacher, but their tell tale could result in more than just removing the teacher from the classroom -- it could destroy his entire career.

A long lost trunk returned to the boys contains a tape recording of their deceased mother which brings to the surface a previously unrecognized problem that triggers uncharacteristic behavior from a usually happy-go-lucky Arnold.

Determined to prove he didn't fabricate a story about drug abuse in his grade school just to win a journalism contest, Arnold takes his article to the New York City newspaper sponsoring the competition, and when they run his story on the front page, Arnold receives some unexpected more support from First Lady Nancy Reagan.