Free!-Timeless Medley- 約束

Samezuka Academy's swim captain Rin Matsuoka reunites with childhood friend Sousuke Yamazaki, who has just transferred in, and the two renew their old promise to swim together. What Rin doesn't know is that Sousuke is hiding a shoulder injury that keeps getting worse, even as the team, including younger members Momotarou Mikoshiba and Aiichirou Nitori, trains for the relay tournament. When the injury starts to strain the friendship, Rin begins digging into what is really wrong. This film retells Free!'s second season from the Samezuka side rather than adding new continuity.