Modern scientists who were exploring in search of the 'spirit of wind', which has been an old legend of Jeju, accidentally travel back in time to Tamra in the 1230s. Meanwhile, 'Yeong-deung', a girl of destiny prophesied by the legend of Tamra, meets 'Yoo-rang' while being chased by pirates who covet the 'spirit of wind' and escapes from danger. However, the pirates attack Tamra to claim the god that has the power to destroy the world, and the giant Dolhareubang robot 'Colossus' to stand up to the enemy appears in the waterfall... Will Yeong-deung, a girl of destiny with the power of the wind and a giant, be able to protect the god of wind?
