Silver Surfer (2016-2017) #2

Why is Silver Surfer fighting the ever-loving blue-eyed Thing? Who is this Alicia Masters person, and why hasn't Norrin told Dawn about her before? Where did that alien armada come from? What can they really do to planet Earth that is worse than death?! And when, exactly, is Clobbering Time? Right now, True Believer! Right now!