At 8:30am one day, Hibiki and friends are all preparing to go on a hiking trip taking place in 30 minutes. Meanwhile, the Minor Trio have a plan involving a radio tower, so Eren decides to follow them. Meanwhile, Hibiki begins to hear the mysterious voice again, before she and Kanade are informed by Hummy about what Eren has seen. As the Minor Trio manage to ensnare Eren as she finds them, they create a Negatone from the radio tower's antenna, hoping to use its properties to spread the Melody of Sorrow across the world. However, the Pretty Cure manage to arrive in time and defeat it, barely making it back home in time for the hiking trip.
今日はみんなでハイキングをすることになっていた。しかし、響は寝坊してしまった。そんななか、ハミィが慌てている。バリトンたちが「トロイの木馬作戦」を計画しているということで、阻止しようとする。
