Crisis on Infinite Earths # 1 - The Summoning

Spoiler Alert

Everything starts out with a mysterious figure known as Pariah. He is the witness of universe after universeb being destroyed. He sees the Universe with Earth-3 disappear. Even the Criminal Syndicate and Alexander Luther Sr. are unable to stop its destruction. Alexander Luther Sr. and his wife Lois know that they can not stop the destruction of their universe so they send their son Alexander Luther Jr. to another dimension in hopes of saving his life. The pod with Luther Jr. goes to the universe of Earth-3.

Lyla and the Monitor watch as universe after universe is destroyed. In an attempt to stop the end of existence Monitor sends Lyla as the Harbinger to find the one the Monitor has selected to save it. Harbinger separates into multiple selves and takes off to multiple universes and times. She summons King Solavar from Gorilla City, Dawnstar from Earth-1's future, the first Superhero known as Firebrand, and the Azure Avenger Blue Beetle. One of her forms is sent to find Arion but her body is taken over by one of the shadows of the Anti-Monitor. Another Harbinger summons Psycho-Pirate.

The possessed Harbinger finds Arion and after toying with him she summons him as well. Meanwhile Another Harbinger summons Firestorm and Killer Frost. Harbinger gets Psycho-Pirate to make Killer Frost fall in love with Firestorm. The Monitor watches all of this. One by one superheroes and villains are called to the Monitor satellite. Others include Dr. Polaris, an Older Superman, Obsidian, Cyborg, Geo-Force, Green Lantern John Stewart and Psimon.

While on the satellite the confused group are attacked by Anti-Monitor Shadows. After a battle the Monitor shows up and helps them defeat the shadows.