The initial anime run consists of . Depending on your preferences, the series can be found across various official platforms:
: Viewers can find listing entries and availability updates on Apple TV for selected regional storefronts.
It is important to note a potential point of confusion for English-speaking audiences: the presence of an unrelated manga titled Himitsu – Top Secret . This is a science-fiction police procedural by Reiko Shimizu, set in a future where brain scanners can retrieve memories from the deceased. It has no relation to the Secret Mission anime discussed in this article and serves a completely different genre and audience.