Drafted into the defense of Equestria, the Crusaders volunteer to embark a series of dangerous operations behind enemy lines to cripple one of their chief technological advantages, a revolutionary spell matrix that Twilight refers to as the "radio."
Twilight has recently had a devastating break-up. Rainbow Dash hates seeing her friend in pain and decides to comfort her, becoming Twilight's guardian angel. Eventually she begins to realize her own feelings.