Crusade is an American spin-off TV show from J. Michael Straczynski’s Babylon 5. Its plot is set in AD 2267, five years after the events of Babylon 5, and just after the movie A Call to Arms. A race called the Drakh have released a nanovirus plague on Earth, which will destroy all life on Earth within five years if it is not stopped. To that end, the Victory class destroyer Excalibur has been sent out to look for anything that could help the search for a cure.
In 2267, six years after the end of the Shadow War, the Drakh, a former ally of the Shadows, attempt to destroy the Earth with a leftover Shadow Planet Killer. Interstellar Alliance president John Sheridan takes command of the Excalibur and Victory and leads the EarthForce and ISA fleets to victory. During the battle, the Drakh released a viral weapon into Earth’s atmosphere, infecting every living thing on the planet. In five years the virus will become active and kill everything. The Victory was destroyed in the battle, but the Excalibur survived. Command is turned over to Captain Matthew Gideon who is given a mission: explore the galaxy to either find a cure or an ally capable of producing one (“War Zone”).
At some point between 2262 and 2267 (most likely in 2264, and just before “To Live and Die in Starlight” which took place in 2265, a civil war broke out on Earth between the Psi Corps and a group of rogue telepaths, with mundanes (non-telepaths) caught in the middle. As a result of the war, the Psi Corps (which all telepaths had been forced by law to join) was disbanded and the laws were rewritten; telepaths were given limited rights and allowed back into society, including the military (e.g. Lt. Matheson in Crusade). Few telepaths have advanced very far because of how recent the war was and due to the common fear of telepaths. Telepaths are still banned from scanning others’ thoughts without consent and are required to be “deep scanned” by powerful telepaths on a regular basis to ensure that they are not violating any laws (“The Well of Forever”).
After the Earth Alliance Civil War in 2261, Earth joined the Interstellar Alliance. As promised by John Sheridan, Mars was granted independence since ISA laws required members to free any colony where the majority of colonists want independence (“Rising Star”). There is still resentment between the two sides (“Ruling from the Tomb”). Earth controls most of the information systems and resources in the solar system and Earth based corporations control much of the Mars economy (“Objects in Motion”). As a result there is some hostility among Mars-born humans towards Terrans and many in EarthForce do not feel obligated to risk their lives to help Earth fight the plague.
Learn more about the concepts, principles and symbolism behind the subliminals found in this television series: