Several years have passed since the Burning Legion's defeat at Mount Hyjal and the races of Azeroth have continued to rebuild their once shattered lives. With renewed strength, the heroes of the Horde and Alliance have begun to explore new lands and broken through the Dark Portal to investigate the realms beyond the known world. Will these heroes find friends or foes? What dangers and rewards lie in wait beyond the Dark Portal? And what will they do when they discover that the demons they thought vanquished have returned to renew their terrible Burning Crusade?
World of Warcraft: The Burning Crusade is the exciting new expansion to Blizzard's award-winning massively multiplayer online role-playing game. It expands the game by tremendous bounds, adding new races, lands, Battlegrounds, professions and items, and more. Here is just a partial list of what you can expect from the World of Warcraft expansion:

An increase in the level cap to 70
Two new playable races: the Blood Elves and the Draenei
Arena-based Player vs. Player Ladder System
Improved PvP Honor System
New starting zones in Quel'Thalas and beyond
The entire new continent of Outland, reachable through the Dark Portal
Many new high-level dungeons to explore in Azeroth, Outland, and elsewhere
Selectable Dungeon Difficulty Setting
New flying mounts in Outland
Many new and dangerous monsters, including epic world bosses
Hundreds of new quests
Hundreds of new items
A new profession: Jewelcrafting
Socketed items