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 2
A complete listing of the "Prehistoric Computers" are as follows: Original Gameboy, Gameboy Advance, and a Virtual Boy. So the only computers that survived two some-odd thousand years into the future are Nintendo Portables. This shouldn't surprise anyone.
Panel 4
I'm a little bit sad that Sagan's Ghost covers up the weird Caveman on the left. And for the record GW Carver's speach balloon covers up a stylized rectum pointing to the colonoscomy wing of the museum.