Jimmy Kudo, the son of a world-renowned mystery writer, is a high school detective who has cracked the most baffling of cases. One day while on a date with his childhood friend Rachel Moore, Jimmy observes a pair of men in black involved in some shady business. The men capture Jimmy and give him a poisonous substance to rub out their witness. But instead of killing him, it turns him into a little kid! Jimmy takes on the pseudonym Conan Edogawa and continues to solve all the difficult cases that come his way. All the while, he's looking for the men in black and the mysterious organization they're with in order to find a cure for his miniature malady.

Conan must contend with the murder of a man who burns to death while the prime suspect has the perfect alibi; he helps a seemingly sweet and innocent girl look for her missing father; and he still has time to explore a haunted house with some of his new friends from elementary school!

All the clues are there--can you piece them together and solve these baffling cases before Conan does?