|“20,000 Leaks Under the City”|
|Teenage Mutant Ninja Turtles (1987) episode|
|Original airdate||October 5, 1989|
|Written by|| Bob Schooley|
Krang drills a massive hose up into the ocean, which he reveals to Shredder is part of his Super Pump. He plans to use it to drain water from the ocean and flood the New York sewers with it, presumably killing the Turtles in the process. Shredder is oddly dismissive of the idea.
Elsewhere, Donatello is showing Michelangelo the new Turtle Tube he's created, a motorized raft with fireable suction cups. Later on, he discovers seismic activity from the Earth's core, meaning that Shredder and Krang are up to something.
At Channel 6, Burne Thompson is lamenting his hatred for birthdays, partly because he is turning fifty (or "thirtysomething" as he claims to his girlfriend). Despite his protestations, April, Vernon and Irma drag him to a salad and seafood restaurant across the street.
On the surface, Shredder is awaiting Rocksteady and Bebop's arrival with a stolen boat. Unfortunately, their usual clumsiness causes the boat to careen out of control, causing a great deal of mayhem and even knocking Shredder into a mud puddle. Krang activates the Super Pump, which is in critical danger of overloading if not used immediately.
The Turtles are finishing a meal when their lair is flooded, sweeping them all out into the tunnels outside. Splinter is nearly sent over a high waterfall, but is saved at the last minute by Michelangelo on a surfboard. The Turtles safely make it out of the sewers.
Unfortunately Krang's Super Pump is malfunctioning, and he's unable to stop it from sucking in the entire ocean and flooding the city. In a matter of minutes the streets are flooded in several feet of water. April rows a boat-shaped salad bar out of the restaurant in search of a story, while Donatello rushes out the newly-amphibious Turtle Van.
After rescuing April from a shark attack, the Turtles encounter Shredder, who orders Rocksteady to throw a grenade at them. Fortunately, Donatello sends the grenade back at them on the salad bar.
Down in the ocean, a giant squid makes its way into the Super Pump. Krang is horrified by the ongoing malfunctions, but decides to put the squid to good use when he learns that the Turtles are still alive. It erupts from the sewers and attacks Rocksteady, but Shredder uses a Brain Wave Neutralizer to put the creature under his control.
A massive tidal wave sweeps the Turtles over to where Shredder and the squid are. As the Turtles are preparing to attack, they catch sight of the squid, which grabs them off the Turtle Van and starts juggling them in the air.
April rams Shredder's boat with the Turtle van, causing him to lose the remote control for the squid. Donatello catches it and uses the device to make the squid put them down safely, then to attack Shredder, Bebop and Rocksteady. Unfortunately, Michelangelo twiddles with the buttons, releasing the villains. Donatello frees the squid by knocking off the mind-control device, and the squid immediately swims back to the ocean.
Meanwhile, the Super Pump gets stuck in reverse, and drains water from the flooded city, flooding the Technodrome instead.
Back at Channel 6, Vernon's head is stuck in a diving helmet, and April gives Burne a birthday present: the story on tape. Splinter, meanwhile, has made a squid dish, much to the horror of the Turtles.
- Leonardo (Cam Clarke)
- Donatello (Greg Berg)
- Michaelangelo (Townsend Coleman)
- Raphael (Rob Paulsen)
- Splinter (Peter Renaday)
- April O'Neil (Renae Jacobs)
- Burne Thompson (Pat Fraley)
- Vernon Fenwick (Peter Renaday)
- Irma Langinstein (Jennifer Darling)
- Shredder (James Avery)
- Bebop (Greg Berg)
- Rocksteady (Cam Clarke)
- Krang (Pat Fraley)
- Tiffany (Jennifer Darling)
- Turtles' Lair
- City Sewer System
- Channel 6 building
- City streets
- Seafood Restaurant
- Shredder's speedboat
Home media releases
- Teenage Mutant Ninja Turtles Volume 4
- Teenage Mutant Ninja Turtles Season 3
- Teenage Mutant Ninja Turtles: The Complete Classic Series Collection
- Donatello's bo staff disappears from his belt when he turns the sewer tube around to return to the lair.
- After the giant squid picks up Rocksteady, Rocksteady replaces Bebop and is still seen in the boat.
- The top of the head of Krang's android body is coloured dark grey in the first shot at the beginning of the episode.
- April is missing her back hip pack in one shot when Burne mentions tries to avoid going to his birthday lunch.
- When Raphael jumps in the water and swims to the phone booth, Donatello has Leonardo's colors.
- In several scenes featuring the squid, the mind control device is absent from its head.
- When the squid is juggling the Turtles, their weapons are all initially in their hands. But in the shots where they are talking, Leonardo's swords and Donatello's bo are on their backs.
- When Vernon is lowered into the water, his air hose suddenly vanishes.
- When the boat rolls away at first, it's dragging Bebop behind it, and Rocksteady is running some distance behind. In the next scene involving those two, it's still running out of control, but suddenly both mutants are riding inside.
- When the water floods the Turtles' lair, Splinter goes down over a waterfall, but after the commercial break, he's still in the water above and never goes down the waterfall, allowing Michelangelo to rescue him.
- Greg Berg voices Donatello and Bebop instead of Barry Gordon.
- Although it isn't specifically named, this episode has the debut of the Sewer Party Tube. It's kind of hard to tell based on the straight black tube but the searchlights give it away.
- Raphael: Telephone Call For Mr.Jaws!
- Raphael trying to trap a shark.