The Legion lure Wonder Woman, Black Vulcan, and Hawkman away from Earth by cloaking it and get them to the Toyman's artificial planet within a black hole. While they try and avoid the Toyman's deadly games, the Legion has the Riddler lure the Super Friends to a deathtrap in the Grand Canyon, then to a planet in Orion's belt where a tribe of women try to petrify them. The Riddler's last clue leads them to the black hole planet which is about ready to close for good. Green Lantern and Superman combine their powers to escape and return to Earth where the Legion is collecting a ransom on the missing Super Friends, but the Legion escapes thanks to the cloaking device.
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.
