The Incredible Shrinking Turtles is Teenage Mutant Ninja Turtles Adventures' retelling the 1987 TV series episode The Incredible Shrinking Turtles. The comic was split up into two parts:
- The Incredible Shrinking Turtles, Part 1 (published July 1989)
- The Incredible Shrinking Turtles, Part 2 (published September 1989)
The story arc is followed by Something Fishy Goes Down in October the same year, signalling the end of the comic adapting episodes of the television series and the beginning of the comic publishing original stories in a branched-off continuity.