Mysterious rumblings have struck the globe, threatening the future of the planet. A team of heroic scientists, engineers and diggers have been sent to find the source of the tremors, by digging down to depths no human has ever reached. Far below the surface, the Power Miners discover more mysteries - crystals buried in the earth and rock monsters that eat the crystals...What connection do they have to the rumblings? Can the Power Miners find out in time to save the Earth?
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