Moscow, 1917. Posing as a governess, American nurse Clara is on a desperate mission to smuggle a child out of a nation consumed by revolution. Her only hope lies with Mikhail, a disgraced aristocrat now working as a porter. Trapped together on the Trans-Siberian Railway, with Bolshevik soldiers watching every move, they must forge an alliance where a single misstep means death, and a stolen glance could betray a dangerous, impossible love.