Hitler's back. A mad scientist thought he could reform him; make Hitler a productive member of our future society. He was wrong. Now, the only thing standing between mankind and total oblivion is Albert Einstein. Einstein has hand picked the greatest minds in history to face off against this great evil. But who will prevail the latest iteration of The Third Reich? Or the Heroes of Science!

Annotations and commentary

Panel 1
I wonder where Hitler's "H" logo disappeared to. Perhaps Albert Einstein Prime punched a wall in his cosmic prison, making the world the way it's supposed to be, ie: without Hitler's "H" logo. Or perhaps Hitler was briefly replaced with his Hyptertime duplicate from Earth Negative 3, where it turns out Hitler never had an "H" logo to begin with.
No, wait, I've got a better one. I've got a better one! I'll use the stock science fiction answer to everything nowadays: Nanites.