 Eddie s flunking algebra and has nowhere else to turn but math-whiz Urkel. Urkel agrees to help Edd-o on one condition: He gets a date with Laura. And just so he ll get what he wants, he takes Eddie s Prince concert tickets for collateral. Laura reluctantly agrees to go with Urkel on a "non-date," which goes just as one would expect. In the end, Harriette assures Laura that Urkel is well satisfied - and then the phone rings!