Shrapnel damage to one eye has sidelined DARK Officer Matt Leoni, so he jumps at an undercover gig in a small Mediterranean country's embassy to work with Nadia Parker, a documentary filmmaker who believes he betrayed her on the past mission that took down her father. When rebels set off an explosion, embassy security believe they are the bombers. Matt pulls Nadia to safety and they flee into the D.C. streets. Unable to rely on DARK, Matt is determined to protect Nadia, clear her name, and find answers. As the two of them work together, trust grows and leads to passion, but both harbor secrets that could tear them apart. A bold plan to foil the traitor's assassination plot could place Nadia in the crosshairs, and time is running out.