Colossal Boy is taken out by Brainiac 6. However, in the next scene he later appears alongside the other Legionnaires while they are still reacting to this.
Kell-El: He's alive!
Lightning Lad: Who? Who's alive?
Kell-El: Superman. I felt his presence in my mind.
Chameleon Boy: Kell, voices in your head? Not a good thing.
Brainiac 5: I've decided to leave the Legion, Superman. At least until I've sorted out all these new feelings. I was emotional as a robot. Imagine me as a human!
Supreme Superman: You didn't give up on yourself.
Brainiac 5: How could I, when I knew you'd never give up on me?
Lightning Lad: Okay, we are so going to lose.
Supreme Superman: Brainiac 5 may not have been human. But he had the biggest heart I've ever seen. He was a hero. My hero!
Brainiac 5: (to Brainiac 1.0) Now I'm going to tell you one last time: get out of my head!
(last line of the series)
Brainiac 6: (Brainiac 5's voice) Evil does not die. (Brainiac 1.0's voice) It evolves.
UK airdate: 9 May, 2008.
Legion Role Call: Superman, Lightning Lad, Brainiac 5, Saturn Girl, Duo Damsel, Bouncing Boy, Kell-El, Timber Wolf, Cosmic Boy, and Chameleon Boy.
Heroes who appear without dialogue: Colossal Boy, Matter-Eater Lad, Shrinking Violet, Blok, Tyroc, Sun Boy, Phantom Girl, Star Boy, Polar Boy, Element Lad, Invisible Kid, Color Kid, Stone Boy, Dream Girl, Nemesis Kid, Karate Kid, Chlorophyll Kid, Dawnstar, Chemical King, Ultra Boy.