During Ubisoft's E3 2015 press event, they showed off quite a bit of Assassin's Creed Syndicate. This is the run of the mill "cinematic trailer" that we have all come to expect for upcoming releases.
Assassins’ Creed Syndicate tells the story of Jacob Frye and his quest to seize control of London’s criminal underground. Watch as he leads his gang—The Rooks—in a frantic fight through the city, traversing the rooftops, streets, and even a speeding train to take down a rival gang that is cruelly exploiting the people of London.