Sequel film to Free!: the Final Stroke - Zenpen. 

After his first appearance on the competitive world stage, Haruka was overwhelmed by Albert’s swimming and lost his way. “What are you swimming for?” His reason to swim and what the water means to him are called into question. The question has trapped Haruka, and he struggles to find the answer on his own.
 

(Source: Crunchyroll)

Episode 1 - Reunion at the Starting Block!

Episode 2 - Memories in the Distance!

Episode 3 - Theoretical Dolphin Kick!

Episode 4 - Captive Butterfly

Episode 5 - Trial in Open Water

Episode 6 - Shocking No Breathing

Episode 7 - One Style Final

Episode 8 - Revenge in the Medley!

Episode 9 - Hesitant Loosen Up

Episode 10 - Irritated Heart Rate

Episode 11 - Furious All-out

Episode 12 - Distant Free

Kyoto Animation

Bandai Namco Arts

ABC Animation

Free! the Final Stroke: The Second Volume