In the midst of the An Lushan Rebellion, Li Yan, a time traveler, unlocks a system that allows him to summon "players" from a popular online game, "Great Tang Storm." This game is a blend of real-time strategy, simulation, and role-playing, where players can rise from humble beginnings to command armies and govern territories. With the empire teetering on the brink of collapse and threats from all sides, Li Yan must use his summoned players to restore the Tang Dynasty to its former glory.