The quartet of Milky Holmes sets out on a study trip and winds up relaxing in hot springs near some snow monkeys. However, their peaceful respite is interrupted by the blaring alarms of the Thief Empire, sparking a fierce battle where both groups put their Toys to work. With the arrival of the Genius 4, the conflict becomes a three-way clash, and amidst the chaos, a devastating bolt of lightning strikes the Milky Holmes girls, causing them to lose their special abilities.