Earth, early twenty-first century, a place of rapid technological progress. The West is at its peak in North America. Mount Olympus is at the 600th floor of the Empire State Building.
Near the new location of Mount Olympus is Camp Half-Blood, a training camp for the mortal children of the gods. A protected place for them to learn to fight monsters, where they are prepared for quests.
And outside the Camp, monsters travel among people. The Mists cloud the eyes of most mortals, preventing them from seeing what these monsters really are. The Gods walk among mortals as well, and the Titans stir in Tartarus, wishing to break their bonds and be free.