Return To Abstergo -
When Desmond learns that his father had been kidnapped by Abstergo Industries. He begin a journey to Rescue him.
In Abstergo HQ Desmond Assassinated both Daniel Cross and Warren Vidic and rescued his father William Miles and returned to the Grand Temple with the final power source.

00:00 William Miles Kidnapped
01:00 Into Abstergo HQ
03:24 Fourth Floor
04:57 Killing Daniel Cross
07:09 To Viddic's Office
08:25 Killing Warren Vidic
09:44 Escaping Abstergo