City skies, ominous clouds surge.

Three years ago, during an anti-narcotics operation in Gongzhou City, a chain of explosions occurred on site due to a misjudgment by the chief commander Ryan Sullivan, resulting in heavy casualties for the narcotics squad. Three years later, Ryan Sullivan, who should have died in the line of duty with no remains left, miraculously awakens from a vegetative state.

The heroic soul cannot rest; he must return from hell to the world of the living, giving everything to uncover the bloody and bizarre truth.