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. is thrilled when he talks Brandi into joining the basketball team - until she replaces him as a starting point guard, and he's relegated to the bench.
New romances are on the horizon for both Marcus and Mo. Marcus finds himself interested in Stacey, the new drummer for their band, while Mo's intended girlfriend rubs the other musicians the wrong way.
Yvette and Mo hatch a plan to elimate the competition in a radio station Volkswagon 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.
When Floyd has to go out of town on business, Marcus tries to step in as man of the house. T.J. poses some unexpected problems when he decides to court popularity by throwing a party for his classmates.
Mo gets the shock of his life when his parents tell him he's adopted. He immediately enlists T.J. in his search for his birth parents.
T.J. is accepted into MENSA, where Floyd meets an attractive divorcee, but T.J. can't stand her uppity son Blake and gets into a fight. Meanwhile, Marcus and Mo become hairstylists.
When the math teacher suddenly quits, Coach Gerber is recruited but soon finds himself in the deep end, so he enlists the help of T.J. Meanwhile, Yvette goes out with the new guy, Calvin.
T.J. is forced to take woodshop and finds out it's not as easy as he thought. Meanwhile, sparks fly between Yvette and a photographer.
When Floyd tells the kids to get a job, Yvette heads for a clothing store at the mall, while T.J. and Marcus set up a Homework Hotline. They all end up encountering problems they hadn't imagined.
T.J. steals the spotlight from Yvette when the girl group Destiny's Child hires him to be their backup dancer instead of her.
Computer snooping helps Marcus woo T.J.'s study partner.
Yvette has a new recurring dream in which she marries Mo. Marcus dreams up a scheme to make money and buy a new sound system.
A dejected Yvette decides she needs breast augmentation after another actress is picked for a plum stage roll. T.J. is harassed by bullies who make fun of his ears.
To enlighten Mo about feminism, Yvette buys hims at a school slave auction; T.J. helps Coach Gerber do his taxes.
When Marcus sees Mo's girlfriend with another guy, he can't decide how to tell Mo. 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. T.J. tries to boost Mo's brainpower.
T.J. develops his first crush on a beautiful substitute teacher. Marcus is accidentally offered a university scholarship.
T.J.'s call to a political talk show prompts an invitation to appear as a guest -- and to replace one of the regular panelists permanently.
Angered over rising soda machine prices, T.J. markets his own cheaper home-brewed soft drink with the help of Yvette, Marcus and Mo.
T.J. plans a prank for graduation, while Yvette decides to boycott her graduation.
Floyd refuses to believe T.J. drank beer at a party with his pals.