Mankind is forced to live underground after a giant alien descends upon our planet. After spending years below, a team of braves a finally ready to head back to the top and fight for their planet, with a secret weapon that has been years in the making.

In the late years of the Sui Dynasty, chaos reigned across the land. On the tenth day of the third month of the fourteenth year of Daye, a mutiny broke out in Jiangdu, Emperor Yang was killed, and the divine beast Kui Ox was left ownerless. Rebel forces from all directions and local powers mobilized to Jiangdu in search of the legendary divine sword that could subdue the Kui Ox. A scholar journeyed to Jiangdu for the imperial examination and, by twist of fate, arrived at the mysterious Caohang Ferry Inn. Within the small inn, there were aspiring scholars like him who possessed ambitions but were scattered across the world, as well as a delicate and enigmatic mute woman, and seemingly unreliable free-spirited martial artists.

During the torch relay of the People’s Games in 2016, the "Night Walker" robs the Holy Flame in the College of Gods and Demons in order to call Fairy He's attention. The Jade Emperor sends Eight Immortals to the college to get back the Holy Flame. After nine competitions, Eight Immortals defeated the Night Walker. However, their victory fails to re-ignite the Holy Flame, until the Immortals realize the meaning of sports while helping the Night Walker at the competition...