第 51 集: Bass 以 Nebula Grey 之力回歸，消滅 Slur，而 Dr. Regal 則進攻地球。

51

Bass reappears and now infused with the power of Nebula Grey,[2] he deletes Slur. Meanwhile, Dr. Regal gains access to Duo's power and begins his attack on Earth, but Duo kills him before beginning the erasure of Earth. The CrossFusion Members travel to Duo's comet, avoiding demise as the Earth vanishes. They confront Duo, begging him to reverse the erasure, but Duo cannot comprehend their pleas, having more interest in CrossFusion instead, a technology similar to his own race's. Baryl then offers to let Duo absorb him so that Duo may understand CrossFusion better, and in return, Earth can be spared. Duo agrees and Baryl makes his sacrifice, returning Earth to normal. Lan then receives a transmission from a very elderly Baryl to reassure everyone that he is fine and peace is finally restored. Back at a restored and repaired Earth, Lan, Maylu, FyreFox, and Chaud throw a fireworks party to celebrate, Charlie and Tesla go on a cruise, Ms. Yuri returns to Ms. Mari's apartment, Dingo returns to his village, Jasmine goes back to her grandfather's home, Raika receives a warm welcome from his pet dog (from Axess), Princess Pride has a photo of Episode 44's vacation framed and put in her office, and Dusk celebrates with World Three at the curry shop. (Source: Wikipedia)