Furthermore, the episode ends with a "Special Teaser" not found anywhere else: A 30-second clip of driving through a snowstorm, with a radio crackle saying, "Project: Submarine is green-lit." This scene does not occur in the main anime episodes until much later (Episode 1090), but placing it here rewrites the viewing order for marathon watchers. Final Verdict Detective Conan Episode 1077.5: The Black Iron Mystery Train (Prologue) is a masterclass in fan service. It is a love letter to the long-term viewers and a frantic, helpful textbook for the newcomers. While it lacks a new mystery, it solves a bigger problem: confusion.
If you are a completionist or a lore enthusiast, you have likely scrolled past the standard episode list and stumbled upon this decimal-point curiosity. What is Episode 1077.5? Is it a lost episode? A recap? A hidden gem of animation? Let’s break down everything you need to know about this unique entry, its connection to the "Black Iron Mystery Train" arc, and why you absolutely cannot skip it. First, let’s clear up the immediate confusion. Detective Conan Episode 1077.5 is officially titled "The Black Iron Mystery Train (Prologue)" (黒鉄のミステリートレイン (プロローグ)). It is not a brand-new, standalone mystery where Conan solves a murder in a single night. Instead, it serves as a clip-show recap —but before you roll your eyes and scroll away, understand that this is the most important recap in the series' modern run . Detective Conan Episode 1077.5
Here are the key segments covered: The episode begins with a stark reminder: Ai Haibara (Shiho Miyano) lives in constant fear. The recap focuses entirely on her "Black Organization Detection Radar"—the instinctive chills she feels when members of the Org are near. The prologue meticulously clips together every instance where Haibara sensed Vermouth, Gin, or Vodka. This sets the stage for the train arc, as the prologue asks: Why does Haibara feel no fear in close proximity to Masumi Sera? 2. The Vermouth & Bourbon Web The most critical refresher involves the three "W"s of the Organization: Vermouth (the actress who never ages), Bourbon (Rei Furuya/Tooru Amuro), and Curaçao (movie canon, but referenced for flavor). Episode 1077.5 painstakingly re-animates (with slight touch-ups) the moment from Episode 704 where Vermouth whispers into the phone: "Move. I will not allow anyone to lay a hand on that boy... not you, not Bourbon." Furthermore, the episode ends with a "Special Teaser"
If you are about to watch the "Black Iron Mystery" duology (Episodes 1077 and 1078), do yourself a favor. Slot 1077.5 in between them. Pour a cup of coffee (or cold brew, like Amuro). Turn off the lights. And listen for the sound of Gin’s lighter—because the train is about to leave the station. While it lacks a new mystery, it solves