With the Pretty Cure's efforts diminishing the Phantom Empire's influence across the world, the girls continue with their peaceful lives, deciding to go on a picnic during the holidays. However, Namakeruda, Hosshiiwa, and Oresky, who are each giving one final chance by Mirage, attack the city all at once with multiple Saiarks in a desperate last attempt. With the Saiarks being no match against the strength the Cures have gained, the trio combine them into one giant Saiark, but the Cures still defeat it. As the girls return to their precious holiday, Mirage prepares to make a move herself with Phantom accompanying her.
今日はお弁当を持ってピクニック。大好きなみんなで過ごす当たり前の日常が幸せなんだ。でもそこへ、もう負けることが許されない幻影帝国の三幹部が、最後のチャンスと、同時に襲ってきたの。ぴかりが丘の幸せを守らなきゃ!