When Antareans return to Earth, Donatello and Rocksteady find themselves victims of Alien Abduction. Meanwhile, Krang is trying to get Shredder to investigate a new power source located under the University's fission plant, but Shredder is more interested in stealing the Antareans' technology and using it to conquer the world.
Tropes:
- Alien Abduction: Rocksteady and Donatello get beamed up by the Antarian's son Nikto.
- Mundane Solution: April stops Nikto's toy from sparking uncontrollably and threatening to destroy the world by removing the battery inside it.
- My Little Panzer: Nikto's toy can apparently destroy an entire planet if set to "critical mass." Considering these are space aliens who live for many hundreds of years, this is normal for them.
- Pop-Culture Pun Episode Title: The title is a reference to "Invasion of the Body Snatchers".
- Shout-Out: The alien's names — Klaatu, Barada and Nikto — are all taken from The Day the Earth Stood Still (1951).
