The episode opens with Mulder floating face-down among some boat wreckage in the Saragasso Sea. The opening title is apparently German for "The Truth Is Out There Somewhere." Mulder gets hauled aboard a luxury liner, where the sailors think he's a German spy. Mulder recognizes the ship as the Queen Anne, a vessel he's gone looking for, and realizes that he's ended up at the very beginning of World War II and the ship has been boarded by Nazi thugs. Mulder knocks out a Nazi who looks exactly like Spender, and also finds a woman who looks exactly like Scully in the ballroom. He is captured by Nazis, two of whom look like Cancer Man and Skinner.
In the present day, The Lone Gunmen tell Scully that the Queen Anne went missing in the Bermuda Triangle back in 1939, but reappeared on satellite in the present day and Mulder went chasing after it. Scully appeals for Navy imaging from Skinner and Kersh to help find Mulder, and finds Cancer Man in Kersh's office. Skinner ends up coming through for her, and Scully is happy enough that Skinner gets kissed before Mulder.
Mulder is imprisoned with the rest of the crew in the engine room, and accidentally tells a spy that a scientist nicknamed "Thor's Hammer" is aboard and whoever has him can build a bomb capable of winning the war. Mulder urges the crew (including a Kersh double) to turn the ship around or Germany will win the war. The Nazis demand that Mulder tell them who the scientist is or they'll start killing people; they make good on the threat twice, and Mulder ends up telling them one of the dead men is the scientist.
Scully and The Lone Gunmen head to the Bermuda Triangle and find the Queen Anne, which is completely desolate. In 1939, the real scientist steps forward and the Nazis prepare to massacre the passengers, but are spared when the crewmen pour in and start a general revolt. Mulder and 1939 Scully are caught by a soldier, but Nazi Skinner shoots him to let them escape. Mulder tells 1939 Scully that she needs to turn the ship around to get history back on track, gives her a kiss goodbye, and jumps overboard to return to his own time.
Mulder is found in the present time and rescued, and realizes that 1939 Scully must have been successful. Scully, Skinner, and The Lone Gunmen are a little skeptical of Mulder's story that he and Scully saved the world from the Nazis. Mulder tells Scully he loves her, though she thinks he's just delirious. Mulder knows better, of course.
Episode Body Count
"Alternate dimensions don't count!"
The Nazis shoot three people, and 1939 Skinner caps a Nazi, but I'm deferring to the Gimpy Rule on this one (especially since this is the episode referenced with that line). Wherever the Queen Anne is, it's not in our dimension, so I'll leave those deaths out of the count.
Cumulative Body Count (120/202 episodes, 1/2 movies)
Humans: 1,439Creatures: 99
Grand Total: 1,599