Slugterra: new champions

Eli, Trixy, cord, and pronto aren't the only crime fighters in the 99 caverns. Black is back and stronger than ever, and Eli and his friends must accept help from a new friend in order to stop him. With ghouls and dark water, will the five new friends be able to stop black once and for all? Read and find out, because these crime fighting friends have many adventures in store for them.