Our Worlds at War was a crossover event following the invasion of Earth by the cosmic entity known as Imperiex, who intended to use Earth as the staging ground for the "hollowing" of the entire universe.

The crossover was published during the summer of 2001, with each month's books being separated into three different phases: Prelude to War, All-Out War, and Casualties Of War.

Reading Order

Prelude to War

1. Superman #171
2. Green Lantern: Our Worlds at War #1
3. Adventures of Superman #593
4. Batman: Our Worlds at War #1
5. Superman: The Man of Steel #115
6. Superboy #89
7. Young Justice: Our Worlds at War #1
8. Action Comics #780
9. Supergirl #59
10. Wonder Woman #171
11. Superman: Our Worlds at War Secret Files & Origins #1

All-Out War

1. Superman #172
2. JLA: Our Worlds at War #1
3. Young Justice #35
4. Adventures of Superman #594
5. Nightwing: Our Worlds at War #1
6. Superman: The Man of Steel #116
7. Superboy #90
8. Action Comics #781
9. JSA: Our Worlds at War #1
10. Batman #593
11. Supergirl #60
12. Wonder Woman #172
13. Wonder Woman: Our Worlds at War #1

Casualties of War

1. Superman #173
2. Young Justice #36
3. Adventures of Superman #595
4. The Flash: Our Worlds at War #1
5. Impulse #77
6. Superman: The Man of Steel #117
7. Harley Quinn: Our Worlds at War #1
8. Superboy #91
9. Action Comics #782
10. Wonder Woman #173
11. Supergirl #61
12. Batman #594
13. World's Finest: Our Worlds at War #1

Collected Editions

• DC Comics Presents: Batman #2
• Superman: Our Worlds at War
• Superman: Our Worlds at War Omnibus

Non-U.S. Editions

• Batman #21
• Batman #22
• Batman #23
• Batman/Superman Sonderband #5
• DC Präsentiert #11
• Superman #21
• Superman #22
• Superman #23
• Superman #24