To own a digital copy that you can download, you can purchase the season from these major retailers:
: Offers individual episodes or the full season for purchase.
: Available to stream in many international regions outside the US.
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.
: Full seasons are available for download and playback via the Google TV app.