Bo tries to convince Billie to return to Salem and enter a rehab program. Billie refuses, saying she doesn’t want her family to see her back on drugs and asks Bo to stay in Rome and help her. Vivian dismisses the man who’s following her as harmless but unbeknownst to her, he follows her home. Carrie discovers the secret Sami has so desperately been trying to hide -- Austin isn’t Will’s father! Later, she rushes to the church to stop the wedding.