When Screech accidentally invents a seemingly miraculous zit cream, Zack sells it at school. However, it soon becomes clear that the cream has an alarming side effect.
Released: 1989-10-07
Runtime: 50 minutes
Genre:
Stars: Mark-Paul Gosselaar, Mario López, Dustin Diamond, Lark Voorhies, Dennis Haskins, Elizabeth Berkley, Tiffani Thiessen