Still searching for a way to destroy the Turtles, Krang develops a Super Pump that he intends to use to flood the sewers and flush out the 'boys in green'. After sending Shredder, Rocksteady and Bebop to make the necessary preparations, Krang begins pumping water out of the ocean and pumping it into the sewers. Meanwhile, in the Turtles lair, Splinter and the Turtles are in the middle of a pizza repast when they are swept away by the sudden onslaught of water. But back down in the Technodrome, something has gone wrong. Krang's pump can not be shut off as more and more water is being sucked from the ocean and "dumped" into the sewer -- which is now overflowing into the streets. Soon, the entire city will be underwater. (thetvdb.com)