Prairie's story could be a lie, everything about it. French (Brandon Perea) found books in her room that would indicate she was doing research on exactly what she was telling her followers. Russian oligarchy, angels, near-death experiences, etc. they were all there. Riz Ahmed's FBI agent was there too. Why? Who knows.
But then the Fifth Movement happened and Betty (Phyllis Smith), Buck (Ian Alexander), Jesse (Brendan Meyer) and Steve (Patrick Gibson) stopped a school shooting. Yes, they stopped a school shooting with a dance. Was it because they actually accomplished the impossible and did some supernatural dance or people just stopped to look at what the heck these five people were doing dancing around the cafeteria? Is French possessed by Homer? Is he an angel? Who knows.
Prairie was shot by the gunman, but when viewers see her after the ambulance ride she's in a white room and saying, "Homer?" Whatttttt???