Enter the Dominatrix

There are 5 missions in the Enter the Dominatrix DLC and they can be played at any time. Once the final mission has been completed, the first one will become available again, allowing all of them to be be played as often as wanted.
 * Save the Planet
 * Meet the Dominatrix
 * At the Races
 * Pop his Top
 * Escape the Dominatrix
 * Official description
 * "For centuries, alien warlord Zinyak has eyed Earth and its precious natural resources and females with a watchful eye. As he prepares an armada for invasion, he has only one worry: the Third Street Saints."
 * "Once a simple street gang from Stilwater, the Saints have evolved into a global empire, replete with bombastic TV advertising and tasteful consumer products, the kind of TV advertising and consumer products that would give any alien warlord pause. Clearly, the Saints are the biggest badasses on Earth."
 * "Now, in order to prepare his forces for domination, Zinyak captures the leader of the Saints and imprisons him in an elaborate virtual reality simulation. This simulation program looks and feels like Steelport, but it is the world that has been pulled over your eyes to blind you from the truth. Here, you are a slave. Welcome... to the Dominatrix."
 * — Official THQ website