Assassin's Creed: The Ezio Collection
Including three critically acclaimed single-player campaigns and featuring over 80 hours of gameplay with enhanced graphics, Assassin's Creed® The Ezio Collection brings these enduring adventures to life for the first time on Xbox One and PlayStation®4 system.
Hey Coop! Looks like this is a listing for a physical pre-owned copy of the game
There isn't much to that can be said without spoiling them, and they're well worth watching if you're a fan of the series. Lineage is before AC2 following Ezio's father on a mission. Ascendance is between AC2 & Brotherhood showing Cesare Borgia's rise to power. Embers is after Revelations showing Ezio meeting Shao Jun who's the assassin in AS Chronicles China. Any more than that will totally spoil these for you. They're definitely worth watching though especially if you like Ezio.
From what I remember from playing the originals on Xbox 360 and replaying them on on Xbox One the graphics did improve wether it is due to upgrades to the game or to the systems I am not sure.