Connecting the kingdom of Rock and sky city rainbow bridge collapse imminent, facing a major crisis. The Dragon Knight assume responsibility guardian of the Kingdom, must be 72 hours, collect "heaven and earth" two party "holy stone", can summon wing line ELF KING, to save the kingdom. However, betrayal, framed, disaster follow close on succession, Saint Knight encounters heavy crisis, almost desperate. The vast between heaven and earth, light stone where? In the boundless huge crowd, who is the wing of ELF KING? The kingdom of Rock, on the verge of death or destruction!