After battling fireball-throwing Titans, the young Olympians find themselves on a double quest: Not only must they find more Olympians that Cronus has swallowed, but they're also in search of magic seeds that will help rejuvenate the earth after the terrible drought that plagued the lands, thanks to Hyperion. But a wind-throwing giant named Typhon has other ideas. Can the Heroes in Training withstand the storms that are coming their way?