Deep in the peaceful ocean where there is never any crime, three valuable treasures go missing.With no one to help the victims Carrie Crab, Susie Seahorse and Johnny Jellyfish, a determined but naive young Octopus decides to become the first ever underwater detective.Armed with a special waterproof detective notebook, a starfish for a badge and no idea how to investigate crime, the Octopus Detective sets off on a humurous adventure to solve the case.Enchanting characters in an amusing undersea adventure with the world's only underwater detective!