Free! - Iwatobi Swim Club Episode 4 English Dubbed Episode Title:Captive Butterfly!.Episode Description:The Iwatobi team trains in the refurbished Iwatobi pool using a regimen unearthed by Gou. Rei's body still refuses to move in the water but Gou insists he master the skill in the week remaining before their first tournament. Nagisa and Makoto both fail to teach Rei their signature techniques, causing Rei to blame it on their teaching methods as well as his not having proper gear. The team goes shopping where Haruka and Rin run into each other and have a tense discussion about their differing forms. Rin wants an equal race, so they decide to settle the score at the tournament. Afterwards, Haruka takes a turn at teaching Rei freestyle swimming, but also fails. Finally, Haruka admits to Rei alone that he is only compatible with freestyle, but swims it with passion. When Rei attempts the butterfly stroke, he discovers he can swim that stroke. The team is ready to race.