Plastic Man #36

In "The Invisible Invaders," Plastic Man and his sidekick Woozy Winks find themselves up against a mysterious group of extraterrestrial scientists from Saturn, whose mission to observe Earth is far more dangerous than it first appears. As the Saturnians quietly study humanity's habits and weaknesses, Plastic Man must use every trick in his elastic arsenal to uncover their true intentions before they decide Earth is ripe for conquest.