Dr. Blakk and his Darkbane minions have discovered a way to make their ghouls faster and stronger — giving them an edge over the Shane Gang.  In order to even the odds, Eli is going to need his most powerful slugs and an upgraded blaster from Redhook.  The only problem is, Dr. Blakk already has the slingersmith working for him…  Eli and the gang attempt a daring rescue mission to free Redhook, but along the way discover Blakk has a much more sinister plan in the works.

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Eli Shane is determined to be the greatest Slugslinging hero of all. But in order to defeat the forces of evil, he must collect, train and duel with little critters called slugs, which transform into powerful magical beasts. Eli and his crew explore the caverns, challenge rivals and one another to friendly duels, and upgrade their gear in their underground world. But there is a threat to Eli and the slugs -- Dr. Blakk wants to transform the slugs into feral mindless weapons. No one has been able to stand up to Blakk's army of henchmen ... until now.