

Two men have returned to their hometown (the titular island) from Seoul to bury the father of one of them, but the islanders vehemently refuse their request, triggering memories of their childhood before and during the Korean War.

Ahn Sung-ki
Kim Chul

Moon Sung-keun
Moon Dok-bae / Moon Chae-ku

Huh Joon-ho
Soondol

Shim Hye-jin
Oknim

Min Kyung-jin
Tinker

Lee Yong-i
Opsunne

Kim Bo-kyung
Choi Woo-hyeok
Kim Chul as a boy
Choi Hyung-in
Nopdotaek

Ahn So-young
Poltoknyeo