Once, many millennia ago, the young, tranquil world of Darius was invaded by a race of star-hopping barbarians under the command of galactic tyrant, Belser. The peace-loving Dariusites were ill-prepared for such an invasion and most fell quickly. However, before the entire planet succumbed to Belser's domination, a brave young couple, Proco and Tiat, led a resistance effort and managed to escape with many of their fellow Dariusites to sectors of space that were still free.