Imaizumi and Naruko continue to challenge Teshima and try to get past him. However Teshima has been conserving his leg strength and is able to continue to block them and catch them when they try to break away. With no other choice left, Imaizumi and Naruko put all of their hopes in Onoda who challenges Teshima on a climb. Teshima uses most of his strength to stay even with Onoda, and he reveals he has timed Onoda's fastest climb carefully to where he knows when Onoda will slow down. Now Onoda must endure more on this climb than ever before if he is to pass Teshima. Failure to do so will result in all the first years leg strength having been used and will leave all three of them out of the Inter-high. Will Onoda manage to prevail and prove Teshima's predictions can't account for one's growth?
1000km走破を目指す坂道達の前に、立ちはだかる2年の手嶋、青八木。二人はリードしている順位を死守する為、坂道達に勝負を仕掛けてきた。二人の強固なチームワークと巧妙な策によって、精神的にも追いつめられる今泉や鳴子。そんな中、手嶋は去年の春、高校に入学して青八木と出会った頃のことを思い出していた…。
1000km주파를 향한 사카미치와 이마이즈미 나루코를 막는 2학년의 테지마, 아오야기. 두 사람은 앞선 순위를 사수하기 위해 사카미치에게 승부를 걸어 왔다. 두 사람의 강한 팀워크와 교묘한 책략에 의해 정신적으로도 궁지에 몰리는 이마이즈미와 나루코. 그런 가운데 테지마는 작년 봄 고등학교에 입학해서 아오야기와 만난 시절을 떠올리는데....
