A retired Chinese soldier, Lei Jun, finds himself in a race against time when a terrorist attack targets a Chinese community abroad. With only 12 hours to act, he must summon all his strength and courage to protect his fellow citizens and survive the dire situation.

Qin Yue is embarrassed of her mother's new job as a municipal cleaner. When she is teased by a more well-off classmate, she claims her mother is working as a flight attendant.