Trivia: The episode's title comes from the first verse of "The Battle Hymn of the Republic".
* Lewis Mesirow, disappeared 19 April 1955. He has remote viewing abilities that locate missing people.
* Paul Newbold has the ability to raise or lower body temperature. Abduction date unknown.
* Tina Richardson, disappeared 12 April 1995. She has the ability to wipe people's memories.
* Michael Lawrence has the ability to change the level of oxygen in anybody's blood. Abduction date unknown.
Collier: The war for the future will be fought in the past.
Collier: (about promicin) We're not going to destroy it.
Shawn: All right, I'll ask the question… What are we going to do with 17,432 units of promicin?
Collier: We're going to give it away.
Richard: To who?
Collier: To everyone…
United Kingdom: 25 October 2006 on Sky One