The Armed Detective Agency returns for this movie. A mysterious fog has been popping up around the world and leaving dead gifted in its wake. The Armed Detective Agency has been hired to investigate the cause of the deaths and the fog. If you enjoyed the seasons of the anime, like we did, you will love this movie. All of the characters return to investigate the mystery of the fog, and some that were briefly introduced will be shown in detail. Buckle up for this ride, we loved it.