Plot: Assassin's Creed: Anthology is a collector's edition consisting of the main games in the Assassin's Creed series prior to Assassin's Creed IV: Black Flag.
Plot: Assassin's Creed: Brotherhood is a 2010 action-adventure video game developed by Ubisoft Montreal and published by Ubisoft. It is the third major installment in the Assassin's Creed series, and a direct sequel to 2009's Assassin's Creed II. Wikipedia
Plot: Assassin's Creed II is a 2009 action-adventure video game developed by Ubisoft Montréal and published by Ubisoft. It is the second major installment in the Assassin's Creed series, a sequel to 2007's Assassin's Creed. Wikipedia