Ultraseven Episode 2 “The Green Terror”

Episode 2 “The Green Terror” On the return of TDF Agent Ishiguro from space, his wife and maid discover a bizarre rock lying on their driveway. The Ultra Guard recognizes it as the alien substance Tilsonite 808, though it is left alone for the police to handle. Later that night, as exposure to a second piece of Tilsonite 808 insidiously sent through the mail seems to mutate Ishiguro into a horrible plant-like alien, Waiell. He leaps into the night, assaulting and nearly killing a passing salaryman. Worse yet, upon his retrieval by the Ultra Guard, the man then mutates into a creature himself.