Steve starts playing chess again with Kenny in the chess club when a cute, alterna chick named Diane enters wanting him to show her some moves. The two set up a date but Steve can't go because Marcia has to take Fab Pam to the hospital because she's all bloaty and he has to watch his kid sister Katie. Marty changes one of Katie's toys real and she can't help but screw up Jordan's chances with Diane.