A vacationing family finds a monster in a swamp. The locals drive it back into the swamp with torches, but it was only a shipwrecked alien trying to get help.; A man reactivates an illegal robot in order to gain recognition for stopping it. He destroys the robot, but realizes that robots are harmless, and instead of cashing in he confesses his plan, and advocates the legalization of robots.; A scientist builds a time machine to travel into the future. He believes that he has travelled to the past, demonstrating that the future does not yet exist, but in fact he saw a future in which Earth was abandoned.; An artist creates a mask based on the face of an ancient sorcerer. He robs a mansion wearing this mask, but his face has transformed to match it.