Slugterra

S04E0422 min· aired 10/25/2016
Into the Shadows: Ghouls and Monsters (4)
TMDb0.0
Overview
Tad's hypnotic slug Pieper has gone megamorph, his gang of supporters all have Gattler blasters and Tad's control over his new ghouls is stronger than Dr. Blakk's ever was. The Shane Gang are under non-stop ghoul fire as they struggle to put a stop to Tad's plans and the mass ghouling of slugs once and for all.