Teenage Mutant Ninja Turtles (1987): Season 4, Episode 21

4 - 21: Funny, They Shrunk Michelangelo

When Michelangelo decides to put one of Donatello's inventions on max power for his own entertainment, he ends in a--quite literally--little problem. April and Vernon get caught in the shrinking ray while getting footage of a military ship and join Michelangelo on his wild adventure.