Repacks use heavy compression to make the 22-episode season much faster to download.
While torrenting technology itself is legal, downloading copyrighted content like Prison Break without authorization is a violation of copyright law in many regions. If you want a 100% "working" and safe experience without the risks of torrenting, is currently available for high-speed streaming and offline download on: Hulu (US) Disney+ (International markets/UK)
To ensure your actually works, keep an eye on these three factors: