- Why wasn't the Bluefin's wreckage ever found? It was probably vaporized by Delphine using the Hand of God to attack the German ship.
- Sam previously made fun of Castiel for believing the plot of Raiders of the Lost Ark could be real. This episode reveals Nazis really did at one time possess (part of) The Ark of the Covenant.
Fridge / Supernatural S 11 E 14 The Vessel