Ghostbusters: Displaced Aggression — IDW Publishing
Issue: #3
When Peter, Ray and Rachel arrive in the near-distant future on a Mars colony where they've located the chronologically displaced Dr. Egon Spengler, they discover the base is under the thumb of an imposing and mostly benevolent dictator—Egon himself! It's Ghostbuster vs. Ghostbuster... with the fate of modern-day Earth in the balance!
Creators: Scott Lobdell, Neil Uyetake, Neil Uyetake, Chris Ryall, Tom Waltz, Ilias Kyriazis
Characters: Rachel Unglighter, Ray Stantz, Winston Zeddemore, Egon Spengler, Peter Venkman, Koza'Rai