Green Arrow [Oliver Queen]; Speedy [Roy Harper]; Professor Hagen; Arrowcar; Arrowplane; Brave Turtle (Medicine Man)
Green Arrow and Speedy land in a remote valley that is still occupied by Sioux Indian warriors. The conniving chief and medicine man manufacture a fake "legend" to retain power, but GA's trick arrows win the day and liberate the tribe.
Professor Elliott Saunders; Marcus Drake; Tom (caretaker); newspaper reporter
Saunders and Drake find a microscopic animal that has been destroying their mineral specimens. They try to kill it and after many attempts leave it overnight under a positive ion beam. Next morning the lab is destroyed and footsteps lead through a hole in the wall. They follow the trail to a town under construction. The town caretaker escapes and warns them but then a ray from the creature melts their Jeep. Bullets also melt but then they notice that the windscreen of the jeep hasn't melted. They use a portable negative ion generator behind glass to shrink and destroy the creature.
Munston cannot find out who is stealing from the missile testing base so calls for help. Blake arrives but finds nothing wrong with security and so sets up cameras to trap the thief. The film shows furniture coming to life and stealing items. They approach a couch that fights and almost defeats them until it is stunned when it falls onto a generator. Outside more creatures come to life and the captured creature shrinks out of sight. The creatures are followed to a crevice caused by a recent earthquake. They send a signal down the crevice which blows up some explosive in a stolen warhead.