When ace high school detective Jimmy Kudo is fed a mysterious substance by a pair of nefarious men in black--poof! He is physically transformed into a first grader. Until Jimmy can find a cure for his miniature malady, he takes on the pseudonym Conan Edogawa and continues to solve all the cases that come his way.

The Junior Detective League searches for a missing classmate and gets lost in a house of secrets. Then Mr. Moore's meeting with a wealthy client at a gentlemen's club is interrupted when one of the bunny-suited hostesses is poisoned. And Amuro faces off with his rival, Shuichi Akai, at last. Conan can't keep track of all the excitement--especially since, as Jimmy Kudo, his relationship with Rachel just reached the next level!