This movie starts with Saze X playing basketball. Suddenly, a lightning bolt hit the earth. They walked towards it and found a boy. The boy's name is Ricky, and he thinks he has forgotten everything. On the other hand, Remy told Sazer-X that a giant monster named Mechanical Giant Bulgario had approached Earth and was destroying buildings. Sazer X still defeated the monster. But then something flashed into their eyes, and Takuto mistook it for a cosmic capsule. In fact, this is the Bosquito people that exist within Bulgaria, which Professor Horiguchi later explained.
サイクルロードレースに青春を燃やす高校生たちの成長や友情を描いた人気アニメ「弱虫ペダル」の完全新作劇場版。原作者の渡辺航が原案を担当した、オリジナルストーリーが描かれる。
野外社团,启程出发! 野外活动社团,简称野外社团。部员仅有3人。校舍坐落于山梨县一角的本栖高校,位于学校一角的部室大楼,将如同「鳗鱼的床铺」一样狭长的大楼一角当做部室使用,慢悠悠的户外社团。