Bison, the ruthless leader of the international terrorist organization Shadowlaw, has been desperately searching for the greatest fighter on the planet for years. He finds it in Ryu, a young wanderer who never stays in one place long enough for Bison to find him. He does, however, get a fix on Ken Masters, an American martial arts champion who studied with Ryu as a child under the same master. Meanwhile, Major Guile of the United States Army is forced to team up with Chun Li from China in hopes of apprehending Bison and putting a stop his international ring of crime.
Set in 1945 at the end of World War II. Saku (Kento Nagayama) arrives on Kakeromajima as the head of navy special forces. He is admired by the children on the island and he is interested in learning the island song as well as drinking with his men. Toe (Hikari Mitsushima) is an elementary school teacher on Kakeromajima and she has feelings for Saku.