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Movies of the animated series Slugterra.
Just when the evil Dr. Blakk has been defeated and Eli Shane's duties as protector of Slugterra become easier, a new danger emerges from beyond the 99 caverns.
A new member has joined Eli and the Shane Gang! Junjie, once the protector of the Eastern Caverns, is a master of the slugslinging art of Slug Fu! But even with the power of five slingers, the Shane Gang find themselves in over their heads as they race across The 99 Caverns in search of the Legendary Elemental Slugs. The five Elementals are ancient slugs of great power, and the forbearers of all slugs found in SlugTerra today. In the wrong hands, they could bring Slugterra to the brink of destruction. So when an evil alliance starts hunting down the Elementals, Eli and his friends — old and new — take off in pursuit of the greatest threat their world has ever faced!
Eli has added some awesome new slugs to his arsenal: the extremely powerful Elemental Slugs. But in order to control them, Eli must learn Slug Fu -- the ancient form of slugslinging that Junjie mastered in the Eastern Caverns.
The time has come for Eli and the Shane Gang to take their new friend Junjie home to the strange and beautiful Eastern Caverns. But when they arrive, they are shocked to find a world darker and more dangerous than Junjie remembers.
An escalating dispute with the Shadow Clan, a newcomer from the Surface, and all the usual thugs-Eli and the Shane Gang have their hands full from the moment they return home from the Eastern Caverns.