Under Madalena and Wormwood's spell, the zombie army revolt against Galavant and company, until Sid arrives with an unlikely army of his own. Galavant, Gareth, and Sid's army battle the Zombies while Isabella fights Madalena.

Cast: Joshua Sasse, Timothy Omundson, Vinnie Jones, Mallory Jansen, Karen David, Luke Youngblood, Genevieve Allenbury, Darren Evans, Ben Presley, Stanley Townsend, Clare Foster, Muzz Khan, Robert Lindsay, Sophie McShera, 'Weird Al' Yankovic