You can officially download or stream through several legal platforms. Direct MP4 or MKV downloads are typically available through digital stores where you purchase the content to own. Where to Stream (Included with Subscription)
If you have an active subscription, you can stream the entire season on these platforms, which often include a "download for offline viewing" feature within their respective apps: : Currently the primary home for all seasons in the US. Prison Break Season 1 Full Movie Download MP4, MKV
(formerly Vudu): Another option for purchasing digital copies. You can officially download or stream through several