Following their narrow victory against Purple Shadow, Project D's reputation is at stake after a pair of imposters parade around Saitama. Initially Takumi seems oblivious to the incident, but takes notice after he is mistakenly blamed for taking advantage of a girl. Meanwhile, the final stage of Project D's expeditions is upon them, and is to be the hardest yet.

As it appears that the FD vs. Supra battle is giving no quarter, the question is, is it possible for Keisuke to hold off Minagawa's professional pressure? Meanwhile a new racer appears on the slopes of Hakone, and its evident he wants to kill himself, and take anybody with him!

The intense hill climb battle between Keisuke and Go Hojo is coming to the end of second round. Keisuke engages in attack mode and Go Hojo starts to get tense. Meanwhile, Shinji Inui has revealed to especially Mako and Sayuki, who has been with him, that he would be the racer of the downhill battle against Takumi.

Takumi and Shinji continue with their match with Takumi, still bewildered by Shinji, starts to focus. But suddenly, Shinji allows Takumi to pass, which disturbs Takumi even more. Even Kubo is utterly disheartened by the turn of events, but both Go and Ryosuke believe this was inevitable, creating a suitable conclusion to Project D's expeditions.

The intense downhill battle between the two drivers are reaching an end, as Takumi and Shinji race to their absolute limits. As this battle comes to a close, and the reign of Project D finally ends, the true meaning behind the "D" will be revealed. As the characters go on different paths, Takumi's passion to be "the fastest one out there" will never end.