De tienjarige Hisada woont in 1986 met zijn liefhebbende ouders en jongere broer in Nagasaki. Op een zomerse dag gaat hij naar Boomerang Island om naar dolfijnen te kijken met Takemoto, die gepest en vermeden wordt door klasgenoten. Hun vriendschap groeit, terwijl ze een avontuur meemaken en in de problemen komen.
Nee, helaas is サバカン SABAKAN nog niet beschikbaar op Netflix in Nederland.
| Sound | 大島ミチル | Original Music Composer |
| Writing | 金沢知樹 | Screenplay |
| Directing | 金沢知樹 | Director |
| Writing | Jun Hagimori | Screenplay |
| Production | Tamotsu Osano | Executive Producer |
| Production | Mitsuru Sato | Producer |
| Production | 飯島三智 | Executive Producer |
| Production | Jun Takahashi | Producer |
| Costume & Make-Up | Reiko Matsushita | Costume Designer |
| Camera | Yusuke Suga | Director of Photography |
| Editing | Narihiko Kôno | Editor |
| Art | Takuya Okada | Art Designer |
| Production | Tomonori Fukuda | Line Producer |
| Lighting | Yamato Watanabe | Lighting Director |
| Sound | Kotaro Marubashi | Music Producer |
| Art | Takayuki Sato | Set Decoration |
| Sound | Masaharu Tanabe | Sound Recordist |
| Directing | Kazuya Shintani | Assistant Director |
| Costume & Make-Up | Asako Nagashima | Makeup & Hair |
| Directing | Dan Ogawa | Assistant Director |
| Crew | Emiko Togawa | Script |
| Costume & Make-Up | Kayo Hosomi | Hairstylist |
