That '70s Show Season 4 Episode 21
Prank Day
It's Prank Day according to Kelso, who manages to trick his friends twice with his stunts. The guys' attempt to retaliate backfires horribly when Red triggers their prank instead. But rather than venting his wrath on Eric, Red joins the prank war to show the boys how it's done. Meanwhile, Jackie throws an impromptu slumber party to cheer Donna up on her parents' wedding anniversary.
- 4 - 27Love, Wisconsin StyleMay. 21, 2002
- 4 - 26Everybody Loves CaseyMay. 14, 2002
- 4 - 25Eric's False AlarmMay. 07, 2002
- 4 - 24That '70s MusicalApr. 30, 2002
- 4 - 23Hyde's BirthdayApr. 23, 2002
- 4 - 22Eric's Corvette CaperApr. 09, 2002
- 4 - 21Prank DayMar. 26, 2002
- 4 - 20Class PictureMar. 19, 2002
- 4 - 19Jackie's Cheese SqueezeFeb. 26, 2002
- 4 - 18Leo Loves KittyFeb. 19, 2002
- 4 - 17Kelso's CareerFeb. 12, 2002
- 4 - 16Donna Dates a KelsoFeb. 05, 2002
- 4 - 15Tornado PromFeb. 05, 2002
- 4 - 14Eric's Hot CousinJan. 22, 2002
- 4 - 13Jackie Says CheeseJan. 08, 2002
- 4 - 12An Eric Forman ChristmasDec. 18, 2001
- 4 - 11The Third WheelDec. 12, 2001
- 4 - 10Red and StaceyNov. 27, 2001
- 4 - 9The Forgotten SonNov. 21, 2001
- 4 - 8Donna's StoryNov. 20, 2001
- 4 - 7Uncomfortable Ball StuffNov. 13, 2001
- 4 - 6The RelapseNov. 06, 2001
- 4 - 5Bye-Bye BasementOct. 16, 2001
- 4 - 4Hyde Gets a GirlOct. 09, 2001
- 4 - 3Pinciotti vs. FormanOct. 02, 2001
- 4 - 2Eric's DepressionSep. 26, 2001
- 4 - 1It's a Wonderful LifeSep. 25, 2001