Walter announces that he is leaving Hillman to take a job at a community center in Philadelphia. A roast is organized to give everyone a chance to say goodbye to him. Ron learns that he cannot graduate because he failed to take a European history course. Walter lobbies the dean on his behalf and convinces him to let Ron take the final. Although his friends help him cram for the test, Ron cannot learn enough in one night to pass the difficult exam. He wants to drop out of school, until Walter reminds him of his father's probable reaction. Kim receives a grant to study medicine in London over the summer. She and Matthew must head their separate ways, as he is going to spend the summer with an acting company in Seattle.

The club owner fires Ron's band, X-Pression, because the group is not bringing in any customers. Dwayne suggests that Ron hire a vocalist. Kim agrees to take the job, and her singing ability brings acclaim to the group. However, she quickly begins to overshadow the rest of the band, and lets the attention go to her head. She turns into a complete diva and alienates her friends. Ron tries to fire her, but Kim smugly points out that they will lose the gig without her. Ron and the band respond to Kim's antics by stopping in the middle of a song and walking out. Kim realizes that she is out of control. She apologizes and agrees to tone down her behavior. Col. Taylor fears that he is too old to keep up with Jaleesa. He buys a Harley and takes up dancing in an attempt to impress her, but ends up hurting himself. Jaleesa puts him at ease by revealing that she is pregnant.