The special contains the footage from episodes featuring Takagi and Sato, with a new narration from Conan and re-recorded line of Takagi and Sato. In the end scene, Sato is preparing herself as the bride as Yumi approach her. Meanwhile, Takagi is waiting outside. Those scenes are leading to the events in .

Years of political tension and mistrust between the two rival nations of Zafran and Revillia escalate to the point of war. Each nations solution: to gain possession of Decimators, the same ancient robots of war that nearly ended all life on the planet 200 years before. As the war ensues and the leaders of both nations become reluctant to surrender, only the desperate plan of Lean, a young cadet, and Nataruma, a psychically gifted young woman, to alter the timeline of events 200 years before stands the chance between humanity's survival or absolute destruction.

An edited and condensed version of the TV series.