"The Super-Crisis That Struck Earth-Two!" and "The Negative-Crisis On Earths One-Two!"
The JLA and JSA fight people that have been possessed by the Black Spheres.
The stories can be found in Justice League of America #55 and 56 published in 1967. It is the first Silver Age appearance of the Earth-2 Robin.
Read more about this topic: Crisis (DC Comics)
Famous quotes containing the word struck:
“I am struck by the way people behave on the Tube. They look at each other beadily and inquisitively, and something goes on in their thoughts which must be equivalent to the way dogs and other animals, when they meet, sniff each other’s arses and nuzzle each other’s fur.”
—Graham Swift (b. 1949)