Story
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. 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.
Where to watch in India
Crusade is not on a streaming service in India that we know of.
Availability can change. Check the service before you plan your evening.
Babylon 5
Farscape
Battlestar Galactica
Earth: Final Conflict
Captain Scarlet and the Mysterons
Doctor Who
Firefly
Star Wars: The Clone Wars