The Ion Storm (Mirror Mirror)

After failing to convince the Halkan Council to allow the United Federation of Planets to mine dilithium crystals on their planet, Captain James T. Kirk, Dr. Leonard "Bones" McCoy, Lieutenant Commander Montgomery "Scotty" Scott, and Lieutenant Nyota Uhura beamed back to the USS Enterprise. But an ion storm caused a transporter malfunction, sending the landing party to a Mirror Universe aboard the ISS Enterprise. The mirror universe Captain Kirk, Dr. McCoy, Scotty, and Uhura were transported aboard our Enterprise and are locked up in the brig by Mr. Spock.