A mysterious woman, known as Madame M, kidnaps forty pre-teen girls and transports them to a remote island to train them as the most deadly assassins. CIA operative Jack Chen follows the case for 6 years with no leads, but when a series of assassinations begin to occur, Jack suspects that Madame M is back in business.
Teddy Yu is a former secret agent turned chiropractor who thought he left his past behind. He teaches martial arts to his two kids. However, his past catches up to him as a rogue agent demands to know the whereabouts of an agent known as Dragon. Now, father and children must team up to stop the rogue agent and his goons.