Rachel opens a restaurant when a neighborhood hangout burns down.

Carl's dealing with a back that's killing him, and a rival officer named Charlie who has a monster ego. So when the precinct's annual dance contest approaches, Carl and partner Harriette decide to teach Charlie a lesson or two in humility.

During a police ride-along, Carl and Steve get stuck on a freight train.

Laura and Eddie are involved in a prank war which includes Steve and Myrtle Urkel being in the middle of their dispute.

In order to give herself some space, Laura attempts to convince Steve to point his affections in the direction of a shy girl at school.

Laura enlists Urkel's help for a science project, despite Estelle's stern warnings against it. Laura falls asleep and has the weirdest dream: Urkel made an atomic bomb ... and sets it off, blowing Chicago off the map.

When a school bully threatens to physically harm anyone who dares to take Laura out on a date, Steve takes a stand for the girl he loves.

An elderly man named Jimmy visits the Winslows, claiming to be the family's long-lost friend. But the shock really sets in when Harriette and Rachel realize that Jimmy is actually their estranged father.

Carl is hoping to get a promotion, but it may ride on Lt. Murtaugh's influence - and his ability to get the smart-mouthed lieutenant a date with a less-than-willing Rachel, who is already fed up with his borderline sexual harassment.