A man enters a machine called the Animus that lets him relive the memories of his ancestor, a 12th century assassin named Altair.A man enters a machine called the Animus that lets him relive the memories of his ancestor, a 12th century assassin named Altair.A man enters a machine called the Animus that lets him relive the memories of his ancestor, a 12th century assassin named Altair.