The CEO of Celestial Seal Group, Silas Sutton, was killed at home by a group of masked killer, his daughter, Noah Sutton, was the only witness. Later, Sean Jones, the President of EverGlory Group, arranged a gold medal bodyguard for Noah Sutton - Leo Hart. The close relationship between the Jones family and the Sutton family, as well as the long-term cooperative relationship between the two companies, did not cause Noah Sutton to have too many doubts about the identity of this bodyguard. However, all of this was Sean Jones's plan. In fact, Leo Hart is Sean Jones' spy placed beside Noah Sutton. But in this complex entanglement, Leo Hart unexpectedly discovered that Sean Jones was actually the mastermind behind Silas's death. In the end, Leo Hart and Noah Sutton, with their wisdom and courage, not only helped Noah Sutton escape the danger, but also brought Sean Jones to justice.
