Synopsis: Superman seems stymied by Paul Pratt, a thief who appears capable of being in two places at once. But he is contacted by Prof. Amos Dunn, who tells him an incredible story: years ago, before Kryptonís destruction, he received radio transmissions from Jor-El, instructing him to construct a matter transmitter / receiver apparatus on Earth. With a unit on Earth and one on Krypton, humans could be teleported across both planets, and Jor-El hoped to use this device on a mass basis to save the Kryptonian people. Dunn did go to Krypton, where he saved the lives of Jor-El and baby Kal-El after both were attacked by creatures from Jor-Elís aquarium. Superman confirms this by examining the scars on his ankle where the Kryptonian fish-snake bit him. However, on the eve of Kryptonís destruction, the apparatus on Earth malfunctioned and could not enable Jor-El, Lara, or Kal-El to teleport to Earth. Later, Dunn saw Superboy, knew that he was the former baby Kal-El, and resolved to tell him of his encounter with him and Jor-El when the youth was an adult. Now, Dunn confirms that one of his assistants has stolen the transmitter plans and is using it with Pratt to commit robberies via teleportation. Armed with this knowledge, Superman intercepts the two thieves and captures them.
Synopsis: Who is this girl, suspended by "invisible" wires, portraying mighty Supergirl battling a space monster, while Kandorian movie cameras grind? How clumsy she looks as she tries to create the illusion that she is flying under her own power! Get ready for a shock!...it is...Supergirl! Not only is she without super-powers anymore, but she is completely unaware that the astounding girl she is enacting is...herself! See the amazing discovery she is fated to make when she learns...the Secret of the Time-Barrier!