Episode Title:Annihilation: Earth! Part 1-2.Episode Description:Annihilation: Earth! Part 1: After learning that the Earth is in danger of being invaded by both the Kraang in their repaired Technodrome and the Triceraton Empire, the Turtles, April, Casey, Leatherhead, and a Kraang rebel known as "Bishop" must work together to take out the Technodrome before the Triceratons arrive and wipe out the Earth.
Annihilation: Earth! Part 2: Even after recruiting the Mutanimals and some old friends to help them, with Michelangelo kidnapped, and time running out for the Earth, the Turtles must stage a rescue for their youngest brother from the Triceraton Empire. Meanwhile, Splinter and the Shredder are forced to form an uneasy alliance to stop the Triceratons from activating a device that creates a lethal Black Hole that will swallow all of Earth.