Attacked by a mobster and fed a chemical that turns him physically into a little boy, crime solving teenager Jimmy Kudo sets out to find his assailant and return to his normal size before his budding relationship with his crush, Rachel, fades into a memory.
Conan Edogawa, a high school detective mysteriously transformed into a first grader, helps a deceptively sweet girl look for her father, investigates a haunted house, and struggles to solve the murder of a man who has burned to death.
Conan must try to solve a murder that was committed at a museum, copying a scene from a gruesome painting, while his friends from grade school find a treaure map that may only lead to trouble.