An episode numbered does not exist in the official release schedule. The anime numbering skips directly from Episode 1077 ("The Black Organization's Scheme: Hunt") to Episode 1078 ("The Black Organization's Scheme: Landing"), which are part of the major "Black Organization's Scheme" manga adaptation arc.
Man (muttering): “Kudo… you’re smarter than I expected. That’s either very good… or very bad.” Detective Conan Episode 1077.5
A rash of mysterious murders targets unidentified foreigners across Tokyo. While walking home from school, Conan Edogawa and the Junior Detective League witness a man plunge from a building, only for Conan to spot Black Organization executive Vodka looking down from the roof. An episode numbered does not exist in the
The Black Organization begins killing FBI agents in pairs, creating a "hunt." Conan, alongside Haibara and the Detective Boys, notices a foreigner falling from a building. Upon discovering Vodka on the roof, Conan realizes the danger. The episode culminates with Conan heading to the Kudo family home to meet with FBI agents, including Jodie and Camel. That’s either very good… or very bad