From official site:
'Return to the frigid north of the Forgotten Realms? in the sequel to the critically acclaimed Icewind Dale?. Building upon the successes of the Infinity Engine used to power the Baldur's Gate? series and Planescape?: TORMENT?, Black Isle Studios? continues to refine the classic RPG gaming experience.
The worst fear of the civilized realms has come true. The Goblinoids have united into an army of outcasts and misfits and they want to call the Ten Towns their own. Massive swarms of Orcs and Worg-mounted Goblins are attempting to overrun the town of Targos, and that's just the beginning! A call has gone out to all those willing to face insurmountable odds in defense of the Ten Towns. Will you heed the call to arms and face the greatest threat to the Spine of the World?'