Macross Delta is set in the year 2067, 8 years after the events of the latest Macross TV series, Macross Frontier. The story focuses on Walküre, a team of talented idols and the Delta Squadron, a team of experienced Valkyrie pilots as they battle against the Var Syndrome, a mysterious phenomena that is consuming the galaxy and there is also the mysterious Aerial Knights Valkyrie fighter team of the Kingdom of Wind.