第2話「緑の恐怖」

A strange metallic rock lands outside the home of Agent Ishuguro, one of the Ultra Garrison members. Having spent six months in solitude aboard Space Station V3, Ishuguro returns to Earth for vacation. Escorting him home, Moroboshi spies the large, peculiar space rock. Using his telepathic powers, he recognizes it as being from another planet. Later that night, agent Ishuguro transforms into a blood-drinking plant creature. He roams the street killing passersby who eventually come back to life as plant monsters know as Alien Waiell who likewise spread the contagion.

“ワイアール星人登場” 宇宙ステーションV3から一時帰還したイシグロ隊員。彼の自宅まで送り届けたダンは、イシグロ邸の庭で、地球には存在しないはずの“チルソナイト808”を発見する。その夜、イシグロ邸付近で人間が襲われる事件が続発する。この事件と“チルソナイト808”の関係は？同じころ、イシグロの妻は夫の異変に気づく。