Floyd refuses to believe T.J. drank beer at a party with his pals. Meanwhile, while on cafeteria duty, Marcus and Mo becomes disgusted with the slop the lunch lady serves and decides to cook some real food.
Marcus scores a date with the girls' volleyball team champ, but plays second string socially. Meanwhile, T.J. is studying the human brain by watching Mo grow "smarter" under the effect of smart pills (placebos).
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.
To enlighten Mo about feminism, Yvette buys him at a school slave auction. Meanwhile, T.J. helps Coach Gerber do his taxes and Marcus is auctioned off to a lonely guy who decided to "buy" his friendship.
A dejected Yvette decides she needs breast augmentation after another actress is picked for a plum stage role. Meanwhile, T.J. is harassed by bullies who make fun of his ears.
Marcus and his girlfriend Dana break up, prompting her to ask Mo to intervene. Meanwhile, T.J. faces gym class - and the locker room - for the first time.
T.J. lands a gig as a dancer in a music video by Destiny's Child and gets an offer to tour with them for a year, but his dad isn't so sure about the idea.
When Floyd tells the kids to get a job, Yvette heads for a clothing store at the mall, discovering racist activity from the manager. Meanwhile, Marcus and Mo get a late night shift at the radio station as host.
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 a sophomore.
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.
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 sleep with a girl who has a school reputation but things isn't going completely his way.moreless
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.moreless
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 starts having doubts when T.J. bonds with a new astronomy teacher, making him question his importance in T.J.'s life. Meanwhile, Marcus and Mo find another student exploiting their personal style by photographing them for a fashion magazine against their wishes.
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.
T.J. qualifies as an intern at the Primate Intelligence Research Project. Meanwhile, Marcus and Mo try to get rich selling "nutritional, energy supplement" candy bars.
T.J. decides he wants to be a reporter, but since answering to Yvette as the editor of the school paper is more than he can take, he starts his own rival publication.
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 accidentally repositions it during the Super Bowl.
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.
T.J. ghostwrites love letters for Marcus to Nina, the new girl in their literature class - and winds up having to ghostwrite love letters for Nina to Marcus, and vice versa.
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.'s teacher begins to reprimand him due to the fact that their constant rounds of back-and-forth are disrupting the class from learning anything. In the meantime, Marcus and Mo try to figure out how to get into a female self-defense class in order to meet girls.
T.J., Marcus and Mo decide to do a music video for their video-production class, with T.J. directing. Meanwhile, Yvette falls for a hunky swimmer who's a little shallow.
A fire to the school's chemistry lab is set, and Mo is the #1 suspect, prompting T.J. to defend him. Meanwhile, Marcus tries to get noticed even though his role in the school play has no lines.
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. However, missing the old T.J., Yvette, Marcus, and Mo are prompted to find a way to regain his intelligence.
Feeling that it's time for his Dad to start dating again, T.J. uses a computer dating service to hook Floyd up with a beautiful woman. However, he regrets what he's done when he feels uncomfortable about their relationship moving up.
When the basketball coach quits his job in the middle of a game, the team must come up with another coach or forfeit - so T.J. is elected. However, T.J. abuses his new position, pushing the team players a bit too hard.
As T.J. earns a job at an electronics company, he soon becomes a little too obsessed with his job, and Floyd feels it's time to lay down the law when he finds that T.J. is barely spending any time with the family.
T.J. begins to set up a campaign to run for school president, believing that it would take nothing to win. However, he soon decides that he'll let Marcus win, and then deviously control him behind the scenes.
As the prom looms in the distance, Floyd, Marcus, and Yvette wish to ensure that T.J. has a date. However, this causes them to unknowingly set T.J. up with three different girls to take without conferencing one another.
T.J. gets more than he bargained for when he lands a spot on the game show Knowledge College, only to earn a bit of money. However, he soon begins to use too much coffee as his medium to study, putting his state-of-mind at risk.
When the keyboard player in Marcus' band breaks a finger, T.J. steps in to save the day, while Yvette is utterly shocked when her friend admits to having a crush on Floyd.
Two new twin girls arrive at the school, and Marcus agrees to date one of them. However, he doesn't know that she has a twin, and unwittingly ends up saying yes to both of them. In the end, Marcus pretends to have a twin so he can go on a date with the other twin and has TJ help him create this suave twin of his.moreless
T.J. finds himself being ostracized after a very risky situation where he tattles on Mo, the basketball team's star player, for smoking in the bathroom, going against "The Code" of the school.
T.J. Henderson goes from being a fifth-grade elementary student to a high-school sophomore at ten years-old, much to the dismay of his brother, Marcus, who is in the same grade.