Trivia: On the Nazis' invasion map of the United States, the large American Flag has 56 stars on it, instead of the 48 it should have in this time period.
This episode marks the second time Daniels dies.
Sal: Just shut up and talk.
Prazki: I can't shut up and talk at the same time.
Star Trek: Enterprise is the only Star Trek series to begin a fourth season without any change in cast members from the pilot episode.
J. Paul Boehmer (SS officer) previously played the Nazi Kapitan in the Voyager episode "The Killing Game Parts 1 and 2", One in the Voyager episode "Drone", Vornar in the Deep Space 9 episode "Tacking into the Wind" and Mestral in the Enterprise episode "Carbon Creek".
Guest stars Joe Maruzzo (Sal) and Steve Schirripa (Carmine) both have roles in The Sopranos.
This is the first Enterprise episode to be shot with a Digital camera. All subsequent episodes are shot this way.