Pretty much everything happens in Gondor and Mordor,Main characters are Sauron, Elendil, Anarion, Isildur,their wives, Gil-Galad, Elrond, Galadriel, Celebrian, maybe Glorfindel, the Blue Wizards and Isildur and Anarions other family.
Saurons spirit returns, at Barad-Dur he takes new form and...