Detective Conan: Black Iron Submarine

On a trip to Hachijo-jima, Conan slips onto a security boat headed for the Pacific Buoy, a distant offshore facility that ties together police surveillance networks around the world. An engineer disappears under suspicious circumstances, and a strange propeller sound drifts through the water as a concealed figure closes in on Ai Haibara. When the forbidden Black Box is finally opened, long buried memories threaten to claw their way into the present, and secrets from the past begin to complicate the mission. Conan and his friends race to untangle a web of motives that links the station to a hidden conspiracy, all while danger lurks beneath treacherous waves.

Directed by Yuzuru Tachikawa, the film draws on Gosho Aoyama's Case Closed manga with creative input from Takeharu Sakurai and Junichi Iioka. It marks another cinematic chapter in the long running Detective Conan series released in 2023, and signals a bridge to new audiences.

With its global fan base, the Conan franchise remains a cultural touchstone for puzzle lovers and action seekers alike. This installment blends high tech surveillance intrigue with emotional stakes, giving Ran Mouri and Ai Haibara moments that underscore the series enduring appeal. Fans on social media celebrate clever set pieces and the way the film weaves international crime tropes into the Conan world, keeping the franchise fresh while honoring its history.

Critics note brisk pacing and intricate deductions, balancing danger with humor. Thematic throughlines include memory versus identity, the cost of surveillance, and the pull of the past on the present. Critics also discuss how the mystery probes accountability and the personal toll of hidden histories.

Animation is handled by TMS Entertainment, continuing the Case Closed cinema tradition. The story adapts Gosho Aoyama's manga into a feature length mystery with Yuzuru Tachikawa directing and regular voice cast returning to bring Conan, Ran and Ai Haibara to life on the big screen, with striking action.