Conan and the Detective Boys go camping with Professor Agasa and Ai out in the forest. While they go bug catching, Professor Agasa presents them with another code/pun for the group to solve. Normally Conan can guess the answer right away, but this time he seems stumped! The Detective Boys give up but Conan refuses to. While Conan tries figuring out the code, he receives a call from Ran and Sonoko about a murder and Sonoko's purse being stolen! The key to the mystery seems to be hidden in a picture of Ran Sonoko sent him, but can Conan figure out this mystery and the code while he's out in the middle of nowhere?
