Brainiac's Invasion

Brainiac's imperative
Since Brainiac gained sentience, he had one goal - to assimilate all knowledge, archive worlds and destroy the rest. He started with the planet of his creators - Krypton. He believed he succeded, but two Kryptonians managed to escape his armagaedon - Kara Zor-El and Kal-El. They made their way to the planet Earth. They could have been left alone, if not for an accident. When Kal-El grew up and became a Superman, he discovered an ancient Kryptonian colony ship. By activating it, he has sent a signal to Brainiac. Brainiac immediately set course for Earth.

The Attack
The attack wasn't a total suprise. Kismet appeared to J'onn J'onzz and warned him about impending invasion. He listened to the warning and gathered other heroes.

On the New Years Eve night, Brainiac attacked a stadium using drones made from alien dead bodies with cybernetic enhancements. They started to attack people at the stadium. Brainiac set an ultimatum - if Superman didn't show up, he would mutilate the Metropolis' team.

One player, Victor Stone, decided he had enough and attacked Brainiac. When commanded to submit, Victor still refused and so Brainiac used a tentacle to tear out one of Victor's eyes and then he gave the order once more. Victor took a moment to compose himself and fight through the pain and then he gave his response in the form of spitting blood and spit in Brainiac's face.

Deciding to demonstrate that his threat was very real, Brainiac used Victor as his example and proceeded to draw and quarter Victor on live television, tearing off both legs at the hip and severing each arm at the elbow. Still, Victor refused to submit and as Brainiac prepared to behead him, the Super Friends arrived.

Superman tore to shreds Brainiac 2.0 and Flash quickly grabbed Victor and took him to Cenral City's S.T.A.R. Labs.

Aftermath
The invasion made heroes realize there are threats even they cannot face alone. They decided to unite and create a new superhero team - Justice League of America.

Many people were inspired by the battle. Super Friends' stand against Brainiac inspired Augustus Freeman to become a hero. Alex Parker dropped his studies and enlisted into military. Victor Stone was saved by the STAR Labs scientists and became a Cyborg.

Brainiac's technology was gathered and kept in warehouses, where it became a target of a cybernetic thief. It was studied and used by John Henry Irons to create weapons.

Brainiac's invasion made John Stewart realize Green Lanterns should work with heroes. He and his partner, Abin Sur, relealed their and the Lantern Corps' existence to heroes.

Trivia

 * Ralph and Sue Dibny saw this on tv.
 * Captain Atom was supposed to be deployed and defend DC, but couldn't due to military bureaucracy.