Kazumi is bummed that Evolt has stolen the bottles of his lost friends. Sento travels to his mother's house in Hokuto for answers about his father, but he and Kazumi end up face to face with a new Smash.
as Sento Kiryuu / Kamen Rider Build
as Ryuga Banjou / Kamen Rider Cross-Z
as Kazumi Sawatari / Kamen Rider Grease
as Misora Isurugi
as Souichi Isurugi / Evolt / Blood Stalk / Kamen Rider Evol
as Sawa Takigawa
as Gentoku Himuro / Night Rogue / Kamen Rider Rogue
as Nariaki Utsumi / Kamen Rider Mad Rogue
as Narrator (voice)
as Build Driver (voice)
