The Iwatobi Swim Club heads to Tokyo for the national tournament that Rei and Nagisa are participating in. Rei is quite nervous, but an unexpected reunion with someone from his past gives him courage... Later, when he stands at the starting block for his race, his bonds with all of his teammates, old and new, bring him back to himself. And so ends Nagisa and Rei's last summer as high school swimmers...
For better or for worse, this 
contest only happens once!
مهما كانت الظروف، هذه المنافسة 
!لا تتكرّر سوى مرة واحدة
So ein Wettbewerb
findet nur einmal statt!
Para bien o para mal,
es un desafío único.
Para bien o para mal,
es un desafío único.
Une course unique
avec rires et larmes !
Nel bene o nel male, questa è una gara unica!
Esteja triste ou alegre,
é uma disputa única!
Хорошо это или плохо, но она бывает лишь раз!