- Before the smash hit movie Serenity came Firefly, the cult TV series which started it all and became a DVD phenomenon, selling almost half a million copies.Set 500 years in the future, Firefly centres around Mal Reynolds, captain of the ship-for-hire Serenity and its eclectic crew of galactic misfits. When he takes on two passengers, a young doctor and his mysterious, telepathic sister, he gets much more than he bargained for...This third official companion in the much-loved series is packed with unseen photos, costume designs, behind the scenes secrets and much more.