Episode Title:Operation Break Out.Episode Description:In an attempt to impress April, Donatello breaks into a secret Kraang detention center alone in order to rescue Kirby O'Neil. He manages to rescue Kirby, although they end up trapped in the detention center with a deadly prisoner called the Newtralizer. Meanwhile, April is hearing sounds that even Splinter can't. The Turtles successfully escape the Newtralizer and bring Kirby to their lair, where he re-unites with his daughter, although they are unaware of the fact that Kirby has fallen under the Kraang's control.