Detective Conan, which episode is this gif?

Countdown to the Sky by Detective Conan is the fifth theatrical version of the Japanese anime work Detective Conan. It is one of the ten most popular Japanese theatrical editions in conan fan, ranking first (not now), with two TV reruns.

Introduction:

On their way home from camping, Conan and his party visited the tallest twin-tower skyscraper in Japan, which is about to be completed in Sidomo. The owner of this skyscraper also invited Kogoro and Xiaolan to attend the opening ceremony, so he met Conan and his party by accident. Led by the secretary, the group visited two identical high-tech twin-tower skyscrapers. However, at this time, many people in this skyscraper have different relationships with this building! Soon after, the first murder happened. ...

And incredibly, members of the "dark organization" actually appeared near the building at the same time, which reminds people of who Haiyuan loved in the middle of the night since those days ... and will Conan's real body be discovered by those guys? And what is the true identity of Haiyuan love? No matter how persuaded by the police and others, the opening ceremony of the Twin Towers went on as scheduled. In order to find out the truth of the murder in this high-tech skyscraper with a total height of 300 meters, Conan will launch the most horrible offensive and defensive war in history with his old enemy, the murderer who forced Kudou Shinichi to drink poison and shrink his body.

The murderer shocked everyone for even more unexpected reasons. The unique killing method, the appearance of black organizations and the thrilling explosion scene can be described as a peak of the theatrical version.