OK K.O.! Let's Be Heroes

Monster Party (2x19)

Air date: Oct 21, 2018

In this crazy Halloween episode, K.O. visits Enid just in time to see her childhood friends from Ghoul School arrive for a visit. The gang is excited to have their "witch" back, but Enid is afraid of telling them about her status as a ninja despite K.O. reminding her that she "had this arc already".