The wizard is the ultimate protector of the four elements. Now his enemies are trying to attack him and gain control of these elements. You have to help prevent this from happening. You should set up different towers with different powers in different locations that will attack the enemy as they attempt to pass these towers. The wizard will also be fighting alongside these towers. As the levels progress you can upgrade different powers and give you the ability to upgrade the towers during battle when you acquire enough money. Each wave of enemies will get larger. Good luck.