- Foreign Language Title: The title is Danish for "dead calm".
- Ghost Ship: Mulder and Scully get trapped in Norway on a boat. They age rapidly.
- Gratuitous Foreign Language: Norwegian.
- Karmic Death: Trondheim locks himself in the hold and hoards all the drinkable water, so obviously the outer hull of the ship rusts away and he drowns in the hold.
- Rapid Aging: Although it's actually more like rapid cellular damage caused by contaminated water.
- That Came Out Wrong: Mulder to Scully, as he's seasick on the ship.Mulder: You're lucky you inherited your father's legs.
Mulder: His sea legs.