A fierce robber has plotted a major heist. But unfortunately, his plan was unintentionally foiled by two dispirited middle-aged best friends, and the stolen cash disappears.

Once famous for his quick blade, a retired assassin can no longer earn a living with his cut-throat skills. Summoned again, he partners with his chauffeur to carry out special missions – fullfilling the wishes of old people looking to kill themselves. When commissioned by a young girl who has been deserted by her parents and lover, the "Elderly's Angel" squad finds an arresting way to complete its task.

Chung Lui Society is a boxing gym founded by former legendary Muay Thai champion Chung Lui, who is dedicated to training professional fighters. Despite the gym's struggles, he remains committed to his lifelong philosophy of never backing down from a challenge. Businesswoman Elsa discovers that her boyfriend Daniel is cheating on her with Macau's female champion, Surewin. Driven by her competitive spirit, Elsa vows to settle their score in the ring. Upon learning that Surewin was Lui’s former student, Elsa seeks him out to train her.