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.
Don't tell them!
Sag es ihnen nicht!
¡No me pongas al descubierto!
¡No cuentes esas cosas!
Ne leur raconte pas !
Non raccontare queste cose di tua iniziativa!
Não conte para eles!
Не смей рассказывать им!