Superman: Unbound

Superman Unbound is a 2013 animated superhero, directtovideo film, adapting the 2008 comic book story arc Superman Brainiac by Geoff Johns. It was directed by James Tucker and scripted by Bob Goodman. It is the 16th film in the DC Universe Animated Original Movies series. The films sneak preview was included with Batman The Dark Knight Returns, Partand Injustice Gods Among Us.

Fearing more drones would come, Superman flies through the galaxy with a Kryptonian spacecraft in an attempt to track down Brainiac before finding his drones attacking a planet. Though he attempts to stop them, Superman witnesses Brainiac capture the planets capital like he did with Kandor before firing a Solar Aggressor missile to consume the planet in its exploding sun. The explosion knocks Superman unconscious and he is brought on board Brainiacs skull shaped, tentacled ship. Coming to in the examination room, he fights his way through the vessel before he discovers a room full of bottled cities prior to being attacked by Brainiac. At this point, confirming that he spared Krypton because of its eventual destruction, Brainiac is shown that he has been collecting information on all the planets he visited and uploading it into his neural core before destroying them. Using Supermans spacecraft and his telepathic abilities, Brainiac discovers that he has been living on Earth. Brainiac decides to chart a course to Earth while sending Superman into Kandor. Inside Kandor, his strength waning due to the artificial red sun, Superman meets his uncle ZorEl and aunt Alura. They explain that Brainiac was instructed to learn all that is knowable about the galaxy. Being a cyborg, Brainiac interpreted his directive literally and realized that he could not achieve this goal because life keeps changing. His knowledge of one world would become outofdate as soon as he moved on to the next world. Brainiac therefore destroys civilizations after studying them so that they cannot change further, thus leaving him with a literally complete and uptodate knowledge of them.Superman formulates a plan and escapes Kandor using the subjugator robots. From there, Superman disables Brainiacs ship and takes Kandor with him back to Earth. At that time, Lois learns from Supergirl why Superman left and alerts the Pentagon of a possible invasion by Brainiac, who eventually repairs his ship and arrives

Source: Wikipedia