Slugterra: The Southern Caverns

Welcome to the Southern Caverns, a previously unexplored area of Slugterra where slug slinging is everything. Many slingers find their fame by duelling for their caverns. Ezra Caddel and his friends are just a few of the hopefuls seeking to improve their skills and rise the ranks. What does the appearance of a new kind of slug mean for them? Are these slugs a blessing or an omen?