"Secret Mission Sennyuu Sousakan wa Zettai ni Ma Work"
Without more context, it's challenging to provide a precise translation or summary. However, the title seems to hint at a story involving clandestine operations, detectives, or investigators with a possibly humorous or ironic tone, given the suggestion that their methods or operations "absolutely don't work."
If you're looking for information on a specific story, manga, or anime with this title, I recommend checking databases like MyAnimeList, Anime News Network, or MangaDex for more detailed information.