I'm assuming you're referring to a video file named "fmab_058.mp4" which might be related to the anime series "Fullmetal Alchemist: Brotherhood" (FMAB), given the naming convention. However, without more context, it's difficult to provide specific content related to that file.
If you're looking for information or a summary of a specific episode (with "058" suggesting it could be episode 58), here's what I can offer: Episode 58: "The Secret of the Azure Isles"
Is there something specific you were hoping to find or discuss regarding "fmab_058.mp4"?
In this episode, Edward and Maes Hughes' conversation about the Strategic Defense Corps and the riots happening around the country reflect the complex politics and social unrest. Meanwhile, Alphonse and Edward Elric find themselves on the Azure Isles, a remote island filled with ancient mysteries.