Meitantei Conan OVA 07: Agasa kara no Chousenjou! Agasa vs Conan & Shounen Tanteidan

Professor Agasa suddenly disappears, leaving Conan and the Detective Boys with a trail of carefully planted clues. What first appears to be another one of his elaborate challenges becomes far more urgent when the children realize that Agasa may truly have been abducted.

Following hints hidden at his home and scattered around the city, Conan, Ayumi, Mitsuhiko, Genta, and Haibara race from one location to the next. To find the professor, they must combine their observations and solve the puzzle before the trail goes cold.