Castiel, after years of working with the Winchester Brothers, has used his powers of becoming invisible to walk among demons and people unnoticed. One day he finds out Raphael has a plan, and its no good. After confronting the Angel, his invisible powers get switched on again, but this time he can't make himself visible. Now he has to try to get Dean to see him again, and he might find out more about the hunters feelings for him then he had hoped for.