Episode Title:Earth's Last Stand.Episode Description:As the team finally reaches Earth, the Fugitoid reveals a horrible secret about his past. He reveals that he was the creator of the Heart of Darkness. At the end of the episode, the turtles warn Splinter about Shredder's betrayal, while Fugitoid flies himself and his spacecraft into the Triceraton mothership along with the Heart of Darkness to destroy it; taking the Triceratons and himself down with it. The Turtles, April and Casey mourn his ultimate sacrifice for their world. However, at the end of the episode, his head reactivates in the Triceraton rubble.