Art (Bruce Willis) is an FBI agent. Unfortunately, his excellent work ability and maverick personality not only failed to win the recognition of his superiors, but also led to his tragic demotion. In an operation, Art's mission was to find a nine-year-old boy named Simon (Miko Hughes). However, a group of brutal killers came to Simon's house before Art. They brutally killed Simon's parents, and the boy escaped because he hid in the closet. It turned out that Simon was young, but he had made great achievements in mathematics. By chance, he actually cracked the intelligence code of the US military, which also brought him the disaster of killing. Art rescued Simon, but the danger did not let the two go. In the continuous pursuit, can Art successfully take Simon away from danger?