Getting ready for Halloween with some new songs and a new member of the gang.

Addison is so excited for her first pep rally as cheer captain; when she tries to get to know the new girl Vanna, Wynter discovers something suspicious about her.

When Vanna doesn't show up for cheer tryouts, Willa tries to convince Addison that she isn't worth the trouble.

When an earthquake hits Seabrook, the werewolves quit the cheer squad and blame Vanna; Zed and Eliza try to cheer Addison up, but Vanna might up to something.

Willa tells Addison the legend of the secret cave, while Vanna puts Zed and the other werewolves under her spell.

Vanna forces Willa to take her to the werewolf den so she can bring back her family of vampires; it's up to Addison, Zed and Eliza to stop her.