The Legion find out about the Monolith of Evil from Solomon Grundy, who reveals it brought him to life. The Legion trick Superman, Black Vulcan, and Hawkman to go to the center of the Earth and recover the Monolith. The rest of the Super Friends battle the Legion equipped with the Monolith. However, it is neither good nro evil, but influenced by whoever holds it. Wonder Woman telepathically controls it long enough for the Super Friends to gain the advantage.
Challenge of the Super Friends is an American animated television series about a team of superheroes which ran from September 9, 1978, to December 23, 1978, on ABC. The complete series was produced by Hanna-Barbera Productions for Warner Bros. Television and is based on the Justice League and associated comic book characters published by DC Comics and created by Julius Schwartz, Gardner Fox and Mike Sekowsky. It was the third series of Super Friends cartoons, following the original Super Friends in 1973 and The All-New Super Friends Hour in 1977. It continues to air on Boomerang in the United States.
