2041, Earth. After being pulled into the planet's atmosphere, the fall of the Freeport Space Station has led to the "Great Cataclysm"—an event that devastated the Earth's environment. Left as a polluted wasteland, survivors go to war with their fellows to guarantee themselves resources; in the end, these scrimmages have erased the whole existence of humanity. Coincidentally, life still exists on a moon base. Although it is supposedly meant as an immigration outpost for the mission to explore Mars, it is soon turned into a city, both regulating and allowing its citizens to flourish. The lunar base, officially named "The City of Eden," holds the hope of fully colonizing the moon. Takeru, one of many citizens of Eden in the year 2267, participates in "Tube Races" between gangs and groups using hovercraft-like vehicles. Due to causing an accident in one of his races, Takeru is sentenced to complete volunteer work outside the city. While clearing his punishment, Takeru stumbles upon remains that may unravel the truth about Earth and Eden's genesis. [Written by MAL Rewrite]

Haruka Nanase has reconciled with his rival Rin Matsuoka, and they have re-established their friendship, determined to race each other again. Now Haruka, along with Makoto Tachibana, Rei Ryuugazaki, and Nagisa Hazuki, prepare for their upcoming tournaments, determined to compete wholeheartedly and achieve victory as a team. At Samezuka Academy, Rin resolves to do the same. Further, the seniors near graduation, and Rin has decided his future plans. However, Haruka and Makoto remain uncertain, and they begin to feel the pressure of having to choose their own paths. [Written by MAL Rewrite]

Rin Matsuoka’s childhood friend, Sousuke Yamazaki, has recently transferred to Samezuka Academy. Upon their reunion, the two reminisce about their childhood days and reaffirm their wish to swim together. Now with Rin, Sousuke, Captain Mikoshiba’s younger brother Momotarou Mikoshiba, and hard-working Aiichirou Nitori, the Samezuka relay team is formed, and their friendship deepens. However, as tournaments, races, and training go on, the reason for Sousuke’s sudden return begins to trouble him and affect his swimming. Noticing Sousuke’s change, Rin pushes to uncover what is holding him back. [Written by MAL Rewrite]

Short specials included on the BD/DVD volumes of Freezing Vibration.