In Beirut in the 1980s, wars were raging and turbulent.Mason Skyles, once a US diplomat sent overseas, is now carrying a heavy past - a tragedy that took away his family and pushed him from the front line of diplomacy into endless silence and memories.However, the call of the past sounded again: he was urgently recalled for a dangerous mission to rescue a trapped colleague, and the figure of the kidnapper actually coincided with the force that might have caused his family to break. At the same time, in the US Embassy, a secret CIA field agent took action quietly.His mission is not only to protect Mason's life safety, but also to ensure that this action, which is intertwined with personal grievances and national interests, can be completed smoothly.In this contest full of lies, betrayal and truth, the two were forced to walk side by side into the depths of the war and towards the most difficult memory in their hearts.