Teenage Mutant Ninja Turtles
Unidentified Flying Leonardo
TV Flash files “Unidentified Flying Leonardo” as the last listed hour of season 4 — Teenage Mutant Ninja Turtles (1987–1996) on Syndication, season 4, episode 39, aired 1990-12-01, 25 min.
From the desk
How this hour is filed
This leaf is S04E39: listed hour 104 of 191 in the Teenage Mutant Ninja Turtles guide, last listed hour of season 4. It aired 1990-12-01 (25 min). The listed hour before it is “The Foot Soldiers are Revolting” (S04E38). Next is “The Turtles and the Hare (1)” (S05E01).

Catalog log
Broadcast listing — not a TV Flash recap.
While helping April investigate a report of giant monsters attacking a superstitious farming village, Leonardo is mistaken for an alien from another planet. The lone Turtle must avoid being hunted down into extinction while also trying to rescue April from a mad scientist.
Viewer FAQ
Where does Unidentified Flying Leonardo sit in the Teenage Mutant Ninja Turtles guide?
S04E39 is listed hour 104 of 191 — last listed hour of season 4, season 4 episode 39.
When did Teenage Mutant Ninja Turtles S04E39 air?
Unidentified Flying Leonardo aired 1990-12-01 and is listed at 25 minutes.
Comics first or the 1987 cartoon?
The cartoon sanded Eastman/Laird into kid-friendly slapstick and became the voice most later versions copy. 1987 is the theme, the pizza, and merchandising as plot — franchise religion, not the grim comic.
In the series
Why this series still plays
Cowabunga as a business plan: four pizza-eating sewer mutants, a rat sensei, and a toy glut that owned late-decade Christmas lists. The cartoon sanded the Eastman/Laird comics into kid-friendly martial-arts slapstick and accidentally minted a franchise religion. The 1987 series is the voice, the theme, and merchandising as plot.
Cowabunga used to be a business plan, not a meme kit. Syndication, 1987 through 1996: four mutant turtles trained by Splinter battle Shredder and the Foot Clan — pizza, a rat sensei, and a toy glut that owned late-decade Christmas lists. The 1987 Teenage Mutant Ninja Turtles, from David Wise and Fred Wolf, sanded Eastman/Laird comics into kid-friendly martial-arts slapstick: Cam Clarke's Leonardo, Townsend Coleman's Michelangelo, Barry Gordon's Donatello, Rob Paulsen's Raphael. One hundred ninety-three…
Open the Teenage Mutant Ninja Turtles package · Season 4 hub
Filed against
- Cam Clarke as Leonardo
Cam Clarke voiced Leonardo on Teenage Mutant Ninja Turtles — cowabunga as a business plan, four pizza-eating sewer mutants, a rat sensei, a toy glut that owned late-decade Christmas lists. The cartoon sanded Eastman/Laird comics into…
- Townsend Coleman as Michelangelo
Townsend Coleman voiced Michelangelo on Teenage Mutant Ninja Turtles — cowabunga as a business plan, pizza in the sewers, a 1987 cartoon that sanded Eastman/Laird comics into kid-friendly martial-arts slapstick and accidentally minted a…
- Barry Gordon as Donatello
Barry Gordon voiced Donatello on Teenage Mutant Ninja Turtles — cowabunga as a business plan, pizza-eating sewer mutants, a rat sensei, a toy glut that owned late-decade Christmas lists. The 1987 cartoon sanded Eastman/Laird comics into…
- Rob Paulsen as Raphael
Rob Paulsen’s Raphael made cowabunga a business plan on Teenage Mutant Ninja Turtles — pizza, a rat sensei, toy-glut Christmas lists — then ran amok as Yakko-era velocity on Animaniacs. 1987 sewer martial-arts slapstick; variety-cartoon…