Star Trek: 10 Starfleet Crews That Totally LOST IT

6. Voyager: The Killing Game

The Killing Game opens with the spectacular sight of Captain Janeway as a Klingon, locked in battle until she finally falls to a Hirogen. It's clear right from the get-go that something is dreadfully wrong.

Terrifyingly, the Hirogen don't infect Voyager with a virus or drive the crew insane. Instead, they erase who they are altogether, turning them into real-life NPCs for ultra-violent holoprograms, making them prey for the Hirogen's hunting games.

The most prominent is the World War II program, with Hirogen taking on the roles of Nazis and the Voyager crew playing members of the French Resistance and Allied troops (just in case you weren't sure who the bad guys were). Janeway takes on the role of the charismatic restaurant owner and resistance leader, while Seven of Nine enchants the patrons as a singer and Tuvok works the bar. We're willing to bet it was the most efficiently run bar this side of the Rhine.

The Doctor is finally able to 'wake' Seven from her character inside the holodeck. But the real challenge becomes guiding the not-quite-Janeway into a very real resistance to retake Voyager from the Hirogen intruders.

The Killing Game is a remarkable, if sometimes grim, two-parter. We watch characters we know and love moonlight as entirely different people, embark on a World War II story within a Voyager story, and examine what identity really means. Stripped of their own personalities, the affected crew are forced to abandon the values that normally define them, yet all settle into facades that parallel their real nature. It makes a Nazi-occupied town feel like a very deliberate choice for such a story.