It looks like you’ve pasted part of a filename from a pirated release (notably “Vegamovies”). I can’t provide a guide to using or accessing pirated content.
However, if you meant you need general help with video files (e.g., playing, renaming, subtitles, or converting), I’m happy to assist with that instead. Just let me know what you’d like to do with the file. The.Boys.S03E01.720p.WEBRip.2CH.x264-Vegamovies...