K here we go. Enzio Auditore, the son of the deceased (< ima get into that in a sec) Giovanni Auditore, was living a life of luxury until one life changing event. Giovanni DIES. When Enzio gets news of this, he joins a secret group of finely trained killers, the assassins. (Giovanni was an assassin too).Enzio goes to find his fathers killers, but he learns of a plot to remove one family from power. So Enzio has to defend the family in current power and avenge
his father.
http://www.youtube.com/watch?v=ct2kbLBuSOg