|Close Encounters of the Nerd Kind'|
|Season 2, Episode 12|
|Air date||November 23, 1990|
|Written by||Jeffrey J. Sachs|
|Directed by||Don Barnhart|
Zack and Slater break the school's professional camera and hatch a plan to make quick money to pay for a replacement before Belding finds out. A tabloid is offering money for photos of real aliens, so they dress Screech up as an alien in order to fool the tabloid. A special agent with the government is more than convinced that Screech is an alien. Can Zack and the gang save Screech before he's taken away to Washington?
- Mark-Paul Gosselaar as Zack Morris
- Mario Lopez as A.C. Slater
- Dustin Diamond as Screech Powers
- Tiffani Thiessen as Kelly Kapowski
- Elizabeth Berkley as Jessie Spano
- Lark Voorhies as Lisa Turtle
- Dennis Haskins as Richard Belding
Lisa: Aliens, whether from outer space or from Mexico, are a plague on this country and we need to do something about it!
It is believed this episode helped galvanize the anti-immigrant movement in California that led to the passage of Proposition 187.