Challenge of the Super Friends

Lex Luthor uses a dream machine to control the unconscious minds of the Superfriends and make them commit crimes. Not knowing of Lex's influence, the heroes surrender themselves to the authorities. Bizarro and Cheetah have taken the place of the police and paralyze them and send them toward the Sun. Given free rein, the Legion takes over the Hall of Justice and use the Justice League satellite to transform all of Earth's inhabitants into duplicates of Bizarro and Cheetah to steal for them. The SuperFriends escape the trap when Superman spots a meteor and Wonder Woman telepathically controls her lasso to direct the cell's paralysis projector into the meteor's path. While the SuperFriends try to thwart the worldwide crime spree, Batman and Robin try to figure out how to reverse the transformation but are sent off a cliff by Bizarro-Alfred. They manage to escape at the last minute and finish their computations and reverse the polarity of the satellite and untransform everyone. They ambush

Captain Cold strikes a deal with the Fearinans that involve tricking the Super Friends into converting Earth's climate to something closer to Venus'. In return the Fearians take on the Super Friends. They suceed in trapping the Super Friends but Green Lantern tricks them into dropping the field by making himself and his comrades invisible.

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.

The Legion use Grodd's new time-travel device to loot the past and trap the Super Friends in 70 million BC (Black Manta and Giganta vs. Aquaman and Apache Chief), Arthurian England in 500 A.D. (Sinestro and Captain Cold vs. Green Lantern and Samurai), and Ancient Rome (Solomon Grundy and Gorilla Grodd vs. Batman and Robin). Aquaman buries his communicator in the past on the site of the Great Hall of Justice to activate it in the present and contact the Super Friends, and Superman breaks the time barrier to rescue them and then travels through time with a geiger counter to locate the other missing heroes. Then the Super Friends confront the Legion at Sutter's Mill in 1848 where they are planning a gold heist. The heroes easily defeat the villains who make a hasty escape with the pre-programmed time travel device.

Brainiac, Cheetah, and Scarecrow launch an attack on Batman, Robin, Wonder Woman, and Green Lantern as they guard a Liquid Light manufacturing plant to steal their power devices. The heroes are captured and the Legion place them on trial, while sending four android duplicates out with their devices to fight them. Bizarro and Black Manta then steal the Liquid Light and use it on a defenseless city, and Superman, Black Vulcan, and Flash battle them and try to stop the Liquid Light, which dissolves anything in its path. The Flash uses his speed to redirect the Liquid Light. Meanwhile, the captive Super Friends manage to outsmart their android duplicates, recover their devices, and join back up with the others to beat the Legion, which manages to make a quick escape.

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.