If you discover that every episode of your Season 2 copy is 2.5 seconds delayed (common with PAL vs. NTSC conversions), you don’t need to manually fix each file.
Use the free tool SubSync or Subtitle Edit:
This will save you 45 minutes of manual adjustment.
Once you have your 16 .srt files (named like Prison.Break.S02E01.srt, S02E02.srt, etc.), follow these instructions.
If subtitles drift out of sync:
A permanent fix can be made with tools like Subtitle Edit (free) – resync the .srt to your specific video.
You cannot install what you do not have. Avoid shady "auto-downloader" software that bundles malware. Instead, use these three trusted subtitle repositories: