Looking for a missing Federation cultural observer, Kirk and Spock find themselves on a planet whose culture is modeled on the Nazi Party.
Enterprise is sent to planet Ekos to investigate a disappearance of Federation historian John Gill.
An accident in a plasma cloud creates a duplicate Voyager after they are attacked by the Vidiians.
A takeover leads Kirk to his old nemesis, Harry Mudd.
Sisko's friend, Commander Cal Hudson, resigns from Starfleet to join the Maquis in their fight against the Cardassians.
When militants take over a world, the Enterprise crew move to evacuate Denobulan geologists that are deep underground.
After promising to spend an evening with Jeannie, Tony is tricked by his superiors into conducting aerospace tycoon P.J. Ferguson on a tour of the base. Ferguson's daughter, Nina, decides that Tony is her man. P.J. persuades Tony's superior to order Tony to have cocktails aboard his yacht. When Jeannie protests, Tony imprisons her in the vacuum cleaner. Later, after P.J. has Tony assigned to a cruise on his yacht, Mrs. Flaherty, Tony's cleaning woman, accidentally releases Jeannie from the vacuum cleaner. She immediately takes off for the yacht. Jeannie disappears from the yacht during an argument with Tony. Nina and P.J. are certain he has pushed her overboard. Charged with murder, Tony is arrested. Roger Healey, certain Tony has lost his mind, agrees to go to Tony's house and tell the walls and the vacuum cleaner of Tony's plight, Jeannie goes to Tony's cell. Her appearance convinces P.J. that Tony is innocent. Later, searching for privacy, Jeannie and Tony climb into her bottle.
After promising to spend an evening with Jeannie, Tony is tricked by his superiors into conducting aerospace tycoon P.J. Ferguson on a tour of the base.