"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 think that Richard Nixon will go down in history as a true folk hero, who struck a vital blow to the whole diseased concept of the revered image and gave the American virtue of irreverence and skepticism back to the people.”
—William Burroughs (b. 1914)