The beautiful and strong female agent Mallory (Gina Carano) has always been a favorite of the killer company, because no matter what kind of problem, it can always be perfectly solved when handed over to Mallory. A week ago, after Mallory successfully rescued the hostage Jiang from Barcelona, she was urgently dispatched to Dublin to perform another so-called "piece of cake" mission. However, she found out during the mission that the hostage she rescued from Barcelona was killed in Dublin, and the evidence pointed to her. Mallory realized that she was being calculated, and what greeted her was an international siege. Forced to do so, Mallory had to flee with the help of several old friends in the underworld, and she had to protect her family in the United States before the other party. What's more difficult is, can Mallory, on her own, find out the mastermind behind the scenes after she retreats unscathed?