Where does Assassin’s Creed: Templars - Black Cross fit?

In 1927, Darius Gift, young, handsome, terribly entitled, is given his first mission for the ancient Templar Order, and the chance to clear his tarnished family name. All doesn't quite go to plan when he arrives in Shanghai, however, and his inexperience jeopardizes the whole operation. Thankfully, he isn't the only Templar new to the city, as the enigmatic Black Cross is stalking the shadows... and saving Darius from failure!