I won't thank you for what you've done, or for what you're about to do, Scott Summers. My thanks are not enough. Instead, let me thank you on behalf of my father, Jakob Eisenhardt of Nurnberg. A good Jew and a true hero of Germany. 
Appearing in 1st story
Featured Characters:
- Magneto (Erik Lehnsherr/Max Eisenhardt) (Main story and flashback)
Supporting Characters:
- X-Men (Main story and flashback)
- Cyclops (Scott Summers) (Main story and flashback)
- Professor X (Charles Xavier) (Main story and flashback)
- Colossus (Piotr Rasputin)
- Kitty Pryde
- Namor
- Emma Frost
- Wolverine (Logan)
- Storm (Ororo Munroe)
- Dr. Nemesis (James Bradley)
- Angel (Warren Worthington III) (Only in flashback)
- Iceman (Bobby Drake) (Only in flashback)
- Beast (Hank McCoy) (Only in flashback)
- Marvel Girl (Jean Grey) (Only in flashback)
- Jakob Eisenhardt (Only in flashback)
Antagonists:
- Nazis (Only in flashback)
- Sturmabteilung (Only in flashback)
- German soldiers (Only in flashback)
Other Characters:
- Major Scharf (Only in flashback)
- Edie Eisenhardt (Only in flashback)
- Adolf Hitler (Mentioned)
- Joseph Goebbels (Referenced)
- Anya (Only in flashback)
- Magda (Only in flashback)
- U.S. Army soldiers (Only in flashback)
Races and Species:
- Mutants
- Humans
- Atlantean-Human Hybrids
- Dogs (Referenced)
Locations:
- Earth (Main story and flashback)
- Europe (Only in flashback)
- Belgium (Only in flashback)
- Ypres (Only in flashback)
- Germany (Only in flashback)
- Nuremberg (Only in flashback)
- Versailles, France (Referenced)
- Poland (Only in flashback)
- Warsaw (Only in flashback)
- Oświęcim (Only in flashback)
- Auschwitz-Birkenau (Only in flashback)
- Union of Soviet Socialist Republics (Only in flashback)
- Ukraine (Only in flashback)
- Belgium (Only in flashback)
- North America (Main story and flashback)
- United States of America (Main story and flashback)
- California
- Florida (Only in flashback)
- Cape Citadel (Only in flashback)
- United States of America (Main story and flashback)
- Europe (Only in flashback)
- Hell (Referenced)
Items:
- Cyclops' Visor (Main story and flashback)
- Magneto's Helmet (Main story and flashback)
- X-Uniforms (Main story and flashback)
- Wolverine's Suit
Vehicles:
- X-Men Blackbird (Only in flashback)
Events:
- World War I (Only in flashback)
Synopsis for 1st story
- Synopsis not yet written
Solicit Synopsis
Before Messiah Complex came Endangered Species. This is the prelude to the X-Men Event of 2011. What does it mean to be a leader? What does it do to a person? What do the choices you make mean about the person you are? This mini-series delves into these issues and will give an X-Men reader what they need to know about their favorite mutants before everything changes in July.