Kamen Rider — Season 36, Episode 10

Baku, tasked with the mission "Get back the national secret", infiltrates the home of art collector Atsumi in a dream. A theft occurs involving a famous painting from Atsumi's collection, and Baku suspects state secrets are hidden within that painting. However, as Baku pursues the culprit, Nox appears and warns him, "Knowing too much will destroy you." The next instant, Baku is struck by a blow from Nox's weapon...!?