The world is ending, and humanity is not going down without a fight. Betty, the newest goddess and planet, is in search of her Oracle; Dr. Phineas Fletcher must find some answers by paying his father, and Calliope wrestles with her new identity.

#GreyMatters finds the gang with some new members-Truly Scrumptious, Sarah, and Allison all face challenges of their own, but the biggest challenge is yet to come. With the Wire after every one and a crazed and unstoppable Carmen on the loose, who will get lost at the end of the world?