A new Roidmude, Angel, appears, granting full human emotions to Chase. Chase, now possessing the emotions he wanted to feel, attempts to integrate into humanity, but becomes uncertain when he realizes the dangers of what the Angel Roidmude is doing. Chase must decide between Justice and the emotions he always wanted, with the lives of those around him at stake.

This twin V-Cinema movies contains the second and third installments after the initial Kamen Rider Drive Saga: Kamen Rider Chaser, they both follow the characters of both Heart and Go Shijima beyond the conclusion of the series. Heart/Mach both take place following the novel, "Kamen Rider Drive: ~Mach Saga~", which takes place two years following the conclusion of the Kamen Rider Drive TV series.