Under orders from DARK, Red Hornet begins spraying toxic gasses aimed at destroying the environment.

Black Chameleon manages to hijack a load of atomic uratonium. Pursued by Jiro, he takes Mitsuko and Masaru hostage.

The Yellow Antlion Brothers create the "Alphabet Attack" strategy in order to stop the wedding of a robotics scientist.

Pink Armadillo transforms itself into a voluptuous woman to entice men and implant control devices in their brains.

Masaru is saved by a girl named Kaori as he is being pursued by Green Sponge. Kaori believes Masaru is a runaway, and declares she'll run away too.

Crimson Squid pursues brilliant young robotics expert named Shimamura Chidori. He intends to implant her brain in his own body.

Mask Crab Red tries to kill Mitsuko, but he is thwarted by King Crab Maroon, who had been saved by her earlier.

Prof. Gill sends Black Spiny Anteater and his daughter, Tiny Spiny, to retrieve some sensitive microfilm from a widow of a victim of DARK.

Jiro escapes from prison but is attacked by Hakaider. Jiro is overpowered, but Hakaider is unable to destroy him.

Angler Brown has plans to brainwash children and turn them into warriors. Kikaider saves the kids but slips away quickly to avoid the police.