T.J. buys bootleg computer games but soon runs into trouble with a sinister stranger. Meanwhile, Marcus and Mo buy a used car that doesn't run.

Computer snooping helps Marcus woo T.J.'s study partner.

When Floyd has to go out of town on business, Marcus tries to step in as the man of the house. T.J. poses some unexpected problems when he decides to court popularity by throwing a party for his classmates.

When Mo's parents leave for a second honeymoon, he stays with the Hendersons, but it drives a wedge between T.J. and Marcus. Meanwhile, Floyd objects to Yvette dating a college guy.

Yvette and Mo hatch a plan to eliminate the competition in a radio station Volkswagen Beetle giveaway to the person who can stay inside it the longest. While they're in the vehicle, Marcus tries to take advantage of having the house to himself, but T.J. foils him.

Angered over rising machine soda prices rise, T.J. markets his own cheaper soft drink with the help of Yvette, Marcus and Mo.

T.J.'s IQ takes a dive after he's accidentally hit on the head by a wood plank, allowing him to act more his age.

When Floyd tells the kids to get a job, Yvette heads for a clothing store at the mall, while Marcus and Mo take up a late-night radio show, but they all encounter problems they hadn't imagined.

T.J.'s classroom behavior irritates a teacher who feels it's preventing the other students from learning. Meanwhile, Mo and Marcus try to meet girls in a female self-defense class.

T.J. thinks his dad's business would benefit from a TV commercial, but when the station airs it at 3:00am, T.J. sneaks in and repositions it - during the Super Bowl.

New romances are on the horizon for both Marcus and Mo in this episode. Marcus finds himself interested in Stacey, the new drummer for their band, while Mo's intended girlfriend rubs the other musicians the wrong way. Marcus is the one to suffer heartbreak first, leaving T.J. to try to pull him out of the doldrums.

Mo gets the shock of his life when his parents tell him he's adopted, so he immediately enlists T.J. in his search for his birth parents.

TJ becomes the new assistant to Coach Gerber when the math teacher finally quits. Meanwhile Yvette meets a guy named Calvin who she finds attractive who turns out to be in middle school.

When Marcus sees Mo's girlfriend with another guy, he can't decide how to tell Mo. Meanwhile, T.J. thinks he's on the bad side of the Secret Service after writing an angry letter to the White House.

Marcus scores a date with the girls' volleyball team champ, but plays second string socially. Meanwhile, T.J. tries to boost Mo's brainpower.

Floyd, T.J. and Marcus build Yvette her own private bathroom, but she is less than thrilled. Meanwhile, T.J. and Mo must work out a family budget for their Life Science class.

After attending a dance class with Yvette, T.J. decides his life's ambition is to become a tap dancer, but he finds out it's no cakewalk.

T.J. is thrilled when he talks Brandi into joining the basketball team - until she replaces him as starting point guard, and he's relegated to the bench.

Floyd refuses to believe T.J. drank beer at a party with his pals.

T.J. tries to run for student-council president, but decides Marcus would be a better choice -- and someone he could control behind the scenes.

To discourage a tireless suitor, Yvette agrees to T.J.'s plan and pretends to be Mo's girlfriend. Meanwhile, Floyd aims to teach Marcus a life lesson he won't soon forget.

T.J. plans a prank for graduation, while Yvette decides to boycott her graduation.

T.J. hooks up his dad with a date from a computer dating service, but is uncomfortable when their relationship heats up.

T.J. defends Mo when he's accused of setting a fire to the school's chemistry lab where his most hated teacher was working. Meanwhile, Marcus tries to embellish his non-speaking part in the school play.

When the star player of the basketball team is in danger of flunking history and being off the team, it's up to T.J. to tutor him before the big game.