Slugterra - Season 1 - Eps 21: The Unbeatable Master
A mysterious slugslinging master appears for the first time in 20 years. Though old, this slinger is an amazing battler—incredibly fast and the master of an unstoppable slinging technique. Eli, Kord, Trixie and Pronto all want to study with the master and learn this awesome move.
About Slugterra

Title: Slugterra
First Air Date: 2012-10-15
Last Air Date: 2016-10-25
Status: Ended
Rating: 8.351/10 (from 853 votes)
Language: EN
Seasons: 5
Total Episodes: 59
Network: Disney XD Family Chrgd
Genres: Action & Adventure, Animation, Comedy, Sci-Fi & Fantasy, Family
Production Companies: Nerd Corps Entertainment, Bell Broadcast and New Media Fund
Synopsis
Following his father's death, 15-year-old Eli Shane embraces his destiny to follow in his dad's footsteps to a secret, subterranean world called Slugterra where he is determined to be the greatest Slugslinging hero of them all!
Cast

Sam Vincent
Eli

Shannon Chan-Kent
Trixie

Andrew Francis
Kord

Lee Tockar
Pronto

Brian Drummond
El Diablos Nacho

Michael Dobson
Drake

Trevor Devall
King of Sling