There's trouble at the beach. The four swim club members are forced to revisit their motivation to swim. After Rei asks Makoto about his odd behavior during the training camp, Makoto tells them about his past.

Prefecturals are over and the Iwatobi Swim Club members are pleased by the progress they have made. A local summer festival gives them an opportunity to relax. When Nagisa finds out that Rin is also at the festival, he orders Rei to follow Rin and make sure that Haruka and Rin do not meet.

Hiyori still remembers the first time he saw Ikuya smile. Both boys grew stronger through rigorous training while they studied abroad in America... but seeing Haruka threw Ikuya off his stride. Now Hiyori wishes Ikuya would just forget about Haruka for good.

Makoto has been unable to get in touch with Haruka following the friendly race at his training camp, making him worry that Haruka is dwelling on what happened. Then Nao approaches Makoto to tell him about a rumor he heard.