In the second torchlight you have to defeat the Ember Wizard, who stole the heart of it in order to become the most powerful man of the universe. Along the way you butcher hundred and thousands of hordes freakish monstrosities and fiendish enemies. It's a Diablo clone, they say, but the clone is better than Diablo 3. You have tons of equipment to choose from; you can choose from different classes, I chose Berserk class and I am happy that I did. It has many more maps than the previous game and secrets rooms.
Overall,it's a a great game and a great way to spend time.