Slugterra

Season 4, Episode 3

Episode Title: Into the Shadows: Out of the Shadows (3)

Air Date: 2016-10-18

Overview:

Tad is missing after the slug-out with the Shadow Clan, so the Gang sets off without him to investigate reports of slugs disappearing. The mystery deepens as the trail of slugs leads straight to Dr. Blakk's old stronghold!