An explosion rips through the school's chemistry lab, and the whole school believes Urkel is to blame and puts him on trial, with Laura acting as his attorney.
Calvin and Laura argue about tradition versus innovation in marriage; Ella presents the couple with the broom she and Curtis jumped over at their wedding.
Curtis is shocked when Calvin and Laura decline to let him cater their wedding; CJ and Jazmine help Jayden get over his stage fright for a school program.
Calvin's lax attitude about passwords lands him in hot water with Laura; Professor louis and Jazmine's relationship changes after he makes a confession.
Ella sponsors the membership of the wife of a dea-con into her social club but begins to believe that something nefarious is going on in their marriage.
Cora's amiable teaching expectations are shattered after she is tasked with reforming a group of unruly students; Brown and London become fashion show models.
Will and Sasha's heartfelt attempts to adopt Brianna and Joaquin are foiled by their mother and her scheme to collect welfare checks by exploiting her children.
A well-meaning Brown tries to find Cora a date through an online dating service; London and Jesus employ their eccentric skills to help Daisy land an audition.
When Will's attempt to patch up his relationship with Brianna by attending her school's annual Career Day falls through, Brown steps in as a hasty replacement.
Sasha discovers a batch of incriminating photographs on Will's cell phone; Brown investigates his family tree and discovers a connection with Mrs. Daisy.
Brown drives his tenants crazy by obsessing over an impending interview with a local magazine columnist; Sasha struggles to connect with a stubborn Brianna.
In an effort to impress his visiting father, Jesus fabricates an elaborate ruse to make himself appear as an affluent tycoon of considerable means and power.
Jamie turns to Fancy for comfort in a fit on loneliness, but their relationship only gets more awkward when he spots her with another man the next day.
Jamie wants to film a video for his latest song at the hotel, but Helen and the actress he hired to be his star both object to the proposed sexual content.
After Fancy nurses Jamie back to health following an incident with some bad Japanese food, he fakes a relapse to keep her from going out with another man.
When Gina, Pam and Cole learn that the Notorious B.I.G. has enlisted Martin's help in finding new background singers, they begin working on their vocal skills.
Martin and Gina plan on having a quiet night alone, but it doesn't turn out as planned because their friends keep showing up at the apartment with problems.
Cole goes to a nightclub with Martin and falls for a beautiful woman who was recently on "America's Most Wanted"; Tommy and Pam question their future together.
Calvin teams up with Dave to catch a thief that has struck his business, so they plan a stakeout; Tina tries to get Gemma to tell her about her new hobby.
Calvin struggles with a decision to confide in Tina after he discovers that his friend keeps a secret; Gemma's relationship with a coach concerns Dave.
Dave mediates a brotherly feud between two wealthy men, but Calvin's help ends up ruining it all; Gemma gets Tina to help her with Grover's first crush.
Calvin and Tina decide to throw a quinceañera for a teen being mentored at Calvin's auto shop; Malcolm is introduced to an influential college baseball coach.
The Butlers struggle after Calvin's rich and eccentric brother drops in unannounced; Dave and Gemma declutter their house and run into unforeseen obstacles.
A double wedding reuniting CJ and Janine and pairing Calvin and Miranda heads straight to the delivery room after Janine goes into labor during the ceremony.
Fancy and Jamie's parents are left wondering where Jamie might be when he mysteriously goes missing while trying to return to the event with his tuxedo.