Niccolò Polo, Marco's father, finally reveals the story that he has kept secret all his life - the story of Altair, one of the most unusual assassins of the Brotherhood. Altair sets out on a dangerous mission that will take him throughout the Holy Land and reveal the true meaning Assassin's Creed. To prove his loyalty to the Brotherhood, Altair must kill nine of his greatest enemies, including the leader of the Templars, Robert de Sable. Altair's life story will be told for the first time: you will learn about the journey that changed the course of history, the ongoing struggle against the Templars, family life, which is as tragic as it is shocking, and ultimately about the betrayal of his old friend.