Overview: When high-energy gems emerge, the contestants are sent into a mysterious cave to mine them out. A scary undertaking? Alone, perhaps. But luckily for them, it's a time for new friends, new allies, and new reluctant acquaintances. A simple challenge: grab a pickaxe and muster the strength to crack the shell. However, as they dig deeper and deeper into the cavernous depths, they find that truths behind the show's origin glow around them, waiting to be revealed. And, of course, among these truths is one of prominence: WHERE'S MEPHONE?