Silver Age: Green Lantern

The Injustice Society, in the bodies of the Justice League, has come to Rann to acquire the absorbascon, which can absorb all a planet's knowledge. It is the final piece they need for the weapon that will allow Agamemno to assume what he regards as his rightful place, ruling the galaxy! But Hal Jordan, in the body of Sinestro, means to spoil that! The "League" lacks teamwork and this allows "Sinestro" to temporarily overwhelm them. But he finds himself wanting to destroy them, because Sinestro's ring is dangerous for anyone sane! Green Lantern is able to hold the power at bay by remembering an event when he defended Ferris Aircraft as Green Lantern. Then he flies to Oa, "Justice League" in hot pursuit, and charges Sinestro's ring with green light. Blasts of energy strike each member of the "Justice League" and revert them to their original bodies. The Injustice League now faces the Green Lantern Corps, but Luthor's engineering and Chronos' watchmaker skill combine to devise a weapon from the Power Battery and the Absorbascon that locks the entire Green Lantern Corps into a will-less hive mind, neutralizing them!