Rosie is an Angel of Darkness (fallen angel) and has been deceiving Justin all along, to Gorog's plan. Alex finds this out with the help of Tina (a guardian angel in training) when she goes to the Angel Realm. Justin crosses over to the dark side with Rosie and becomes an Angel of Darkness, breaking his wand. He steals a special compass from the Angel Realm known as the Moral Compass, and now the leader of dark angels, Gorog, wants to destroy Justin since he's an outsider. Rosie, realizing she was deceived by Gorog as well, comes to her senses and tries to get Justin to run away to save him, but Justin refuses. With angel wings, Alex tries to convince Justin that he should not be an Angel of Darkness, because in his heart he was a good wizard. Meanwhile, Maxine is forced by Harper to have a slumber party, since Harper never had a slumber party. Maxine gets mad and turns all of the girls into "older guys". (thetvdb.com)