A mainland security officer must race against the clock to retrieve the son of a man who's holding an entire school hostage.

Cheuk is a mainland security officer who's thrown into a race against the clock when he discovers a man is holding an entire school hostage in exchange for his adopted son, so it's up to Cheuk to use his formidable martial arts skills to retrieve the boy and bring him back before the man decides to kill everyone.—Himboy32