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

I know the whole Da Vinci Code thing is getting kinda played out, but since I'm using Leonardo as a main character I felt it necessary to at least deal with the aforementioned bugaboo. And since the next chapter will deal with Da Vinci himself I decided it was time.
Panel 5
There's a picture of Boss Smiley, the embodiment of the American Politican process from the short-lived comic book Prez in the background. Also, Da Vinci's impromptu motorcycle is strongly inspired by the Peter Fonda vehicle, "Easy Rider." And the thing's France themed because as stated in the first panel, Da Vinci lived out the end of his days in France.