Maria is reunited with her former Valley High classmate Tony Dillon, four years after he stood her up (she thinks) at their middle school prom. Although he would love to patch things up with her, she makes this impossible by spreading vicious lies and rumors about him - which not only costs him his job at The Max but drives his own football teammates to seriously injure him during practice. Finally, the truth comes out - Tony ditched her at the prom because he couldn't afford a tuxedo, and for a more recent date because his interview for the Max job (from which she got him fired) ran overtime...Meanwhile, Eric, Nicky and Katie try to console Liz after Ryan's departure - even though she insists she's no longer affected by it...Elsewhere, Screech tries to convince Mr. Belding's son Zack that his dad is cool - by staging scenarios that will make Mr. B seem strong and/or tough. Basketball legend Kareem Abdul-Jabaar guest stars.