Kelly gets a job working at The Max but may have to tell Zack it's over between them when she falls for her boss.

The gang is forced to choose between supporting Kelly's relationship with Jeff and helping Zack cope with his grief over their break up, while Lisa plans her sweet sixteen party.

Zack begins dating a college girl named Danielle, and asks Screech to make fake IDs in order that they can hang out with her at a club. However, things become complicated when the guys see Kelly's boyfriend, Jeff, there with another girl.