T.J. skips grades and enters high school at age 10.

Two twin sisters move to the school. Marcus gets a date with the pretty cheerleader, but unknowingly mistakes her for her smart twin later. As he realizes how much he likes them both, Marcus sets up a plan to date them both. The cheerleader will date Marcus, while the intelligent one will date ... Marquis.

When the keyboard player in Marcus' band breaks his finger, T.J sits in. Meanwhile, Yvette is mortified when her friend admits having a crush on her dad.

When Mo and T.J. are teamed up by their biology teacher to observe animal behavior, T.J. decides they'll watch his brother Marcus and sister Yvette.

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.

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. is forced to take wood shop and finds out it's not as easy as he thought. Meanwhile, sparks fly between Yvette and a photographer.

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.