During the Ming Dynasty, an elite guard named He Ying is falsely accused of a crime and buried alive in ice alongside a group of conspirators. Centuries later, their icy tomb is unearthed, and He Ying awakens in modern-day Hong Kong. Confused but determined to clear his name, he navigates the bustling city, using his martial arts skills to confront the chaos around him. Simultaneously, He Ying's resurrected foes also escape their icy imprisonment and pursue him through the urban landscape, intent on enacting their revenge.

As he adapts to contemporary life, He Ying forms an uneasy alliance with a local woman who helps him understand the new world. Together, they delve into the historical mystery behind his betrayal. He Ying's quest for redemption and justice pits him against not only his ancient adversaries but also new threats and challenges unique to the modern age. The story weaves through action-packed sequences and dramatic revelations as He Ying races against time to expose the truth and find a way back to his own era.