You are going to Watch Teenage Mutant Ninja Turtles Episode 21 online free episodes with HQ / high quality. Stream cartoons Teenage Mutant Ninja Turtles Episode 21 Online Karai’s Vendetta. The Turtles discover the Kraang’s plot to turn Earth’s water into Kraang Water. While the Turtles are infiltrating an undersea Kraang base which is guarded by a sea creature from Dimension X, the Foot Clan attempts to capture April when Shredder discovers she is not just an ally, but also the key to the Kraang overall plan to take the Earth after Shredder had interrogated a captured Kraang operative. When Karai tries to take her captive however, She learns something that could change everything about her, April, and the Turtles.