A story set in nineteenth-century China and focusing on the life-long friendship between two girls who develop their own secret code as a way to contend with the rigid social norms imposed on women.

When corrupt Roman leader Tiberius arrives with a giant army to claim the Silk Road, Huo An teams up his army with an elite Legion of defected Roman soldiers led by General Lucius to protect his country and his new friends.

In 2074, when the mob wants to get rid of someone, the target is sent into the past, where a hired gun awaits - someone like Joe - who one day learns the mob wants to 'close the loop' by sending back Joe's future self for assassin...