This Ain't Saved by the Bell XXX Oct 7, 2009

It's the start of a new term, and Zack is planning to take his relationship with Kelly to the next level. Meanshile, Slater gets reacquainted with old schoolmate Jennifer, who wants Zack to join them as well. Meanwhile, a Mystery man is running around school with no pants on, and Lisa is determined to find out who he is.