Free! -Dive to the Future-: Build-Up of Early Spring!

Haruka Nanase, now attending college in Tokyo, has an unexpected encounter with Shiina Asahi, an old friend and teammate from his middle school years. This encounter leads old and painful memories to resurface, while new challenges await on the road to competing on an international level.

The film will be a "reconstruction" of the Free! Dive to the Future television anime series, but with an added "new episode."

Taking place between the events of Free!: Eternal Summer and Free!: Dive to the Future , Free!: Take Your Marks plays out the graduated seniors' last summer through four different stories before they set sail for the future. Unmei no Choice! (Destined Choice!) follows Haruka Nanase and Makoto Tachibana searching for a new apartment for Haruka as he settles into Tokyo. Hitou no Cooling Down! (Cooling Down at the Secret Hot Spring!) sees Aiichiro Nitori choose a graduation gift for Rin Matsuoka and Sousuke Yamazaki, while Momotaro Mikoshiba wins tickets to the Anago Hot Springs. Hoping for a trip together, Aiichiro and Momotaro invite Rin and Sousuke. Kessoku no Batafurai! (United Butterfly!) shows Rei Ryugazaki, Nagisa Hazuki, and Gou Matsuoka creating a recruitment video to attract new club members for the next school year. Tabidachi no Etanaru Buru! (Departing Eternal Blue!) looks into the Iwatobi and Samezuka swim teams' plans for Rin's surprise going-away party, as he will be departing for Australia soon.

Unaired episode included with volume 7 of the Blu-ray/DVD.