Synchronizing…

Assassination is the targeted killing of an individual who is in a high-profile position.

The year is 1191 AD. The Third Crusade is tearing the Holy Land apart. Altair, a member of the Assassins Brotherhood, fights to bring peace and safety to the known world by assassinating key leaders.

Now and then…

Your name is Desmond Miles, a common bartender kidnapped by some scientists and imprisoned in a facility belonging to Abstergo Industries, where secret experiments take place. The newest experiment is… you. Desmond is the last descendant from a long family line of assassins. Abstergo created a machine called "Animus" which recreates the memories of an ancestor from a specific period. The time is 1191 AD, Holy Land and the ancestor is Altair.

Feeling dizzy? Well, the plot is somehow confusing in the beginning, every aspect of the game being explained as you advance through the story.

Altair is a killer from the Hashashein sect , a Brotherhood of assassins. He is charged with the mission of killing Robert de Sable, Grand Master of the Templar Knights, but his rushed judgment leads to the failure of the mission. The Brotherhood leader, Al Mualim, strips his ranks and weapons, giving him the chance to redeem himself: kill nine targets.

The plot takes Altair through different areas, historic cities like Jerusalem, Damascus, Acre and Masyaf, to gather information and perform intelligence tasks in order to complete his assassination missions. There are nine assassinations for Altair to perform, nine highly ranked political figures in each of the towns above. Altair discovers that these nine persons are more than just a way to redeem his failure, but they are all Templars and share a common interest.

In the other "reality", Desmond, who is a prisoner of his own past, learns that the scientists who kidnapped him are interested in an artifact and the location is known only by Altair. The overall story of the game is pretty compelling, with a lot of characters involved, each having its own story and a personal interest in the whole plot.