Power Miners was a LEGO theme released in 2009 and was the successor to Rock Raiders and was generally set in underground caverns. Two generations of the theme were released, in the first generation, Power Miners are deep in the crust of the Earth where they fight the Rock Monsters. In the second generation, Power Miners have drilled into the volcanic recesses of the Earth's core where team faces the Lava Monsters. The theme was discontinued in 2010.
2010 LEGO Sets
2010 marked the debut of Collectible Minifigures Series 1 and 2, launching a global collector phenomenon. LEGO expanded its Disney partnership with Cars under DUPLO and Toy Story sets in minifigure scale, while Prince of Persia joined the lineup alongside Star Wars sets celebrating The Empire Strikes Back’s 30th anniversary. New original themes included Atlantis, Hero Factory (successor to BIONICLE), World Racers, and Kingdoms, a return to historically inspired castle play. Several older lines ended, including Agents, Bob the Builder, Indiana Jones, and Thomas & Friends.