After deciding that leaving town would be for the best, Hope gets pulled back in after Josie comes up with a risky plan to close the Malivore portal. Elsewhere, Alaric and Dorian make an alarming discovery about Professor Vardemus, while Rafael learns some upsetting news about Landon's future.

Hope joins forces with an unlikely ally to take down a Christmas monster, who's using holiday cheer to infiltrate the Salvatore School. Elsewhere, Landon surprises Rafael with news about his family lineage, and Sebastian accompanies Lizzie on her latest mission.

Back and ready to wreak havoc, The Necromancer's plan for revenge on Malivore takes a turn when he realizes he is now a human and powerless. To mend fences with Josie, Hope offers to help her learn more about the mora miserium. Elsewhere, Alaric enlists Landon's help to find out if Sebastian is a threat to the school.