Slugterra - Season 4 (2016)

In an epic battle, Junjie and Eli confront the Emperor and the Dai-Fu as the fate of the entire Eastern Caverns hangs in the balance.

While Junjie struggles with the knowledge of what he did during his time as the Dark Slinger, the Shane Gang meet a former servant of the Emperor who wants to turn over a new leaf. But can the Shane Gang help a bad guy learn to do good?

The Shane Gang decides to use Pronto as bait when they arrive at a cavern overrun by thieves. But their plan goes awry when Underlord Holt arrives and commands the thieves to work together to bring him Pronto - dead or alive.

When the Shane Gang travel to the Auroris Mine, they discover a legendary monster carved out of stone attacking the mines-the Pyritor. Trixie studies the legend to help them locate the creature's home and put a stop to its reign of terror, but first they must confront the true nature of the beast, and its assistant.

Determined to up his game against Stone Warriors, Kord visits a famous Eastern Technician for help creating a new blaster upgrade.

Thieves steal precious cargo; the gang discover who The Giver really is.

Junjie tells the history of the Eastern Caverns and his ancestors.

Pronto accidentally uses the Emperor's sword blaster; Lady Dai-Fu manipulates Underlord Holt.

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The gang recruits their friends and some enemies to help them take down the Emperor