Currently available on 1 streaming service.

The Citadel - watch online: stream, buy or rent

Currently you are able to watch "The Citadel" streaming on Amazon Prime Video.

Where can I watch The Citadel for free?

There are no options to watch The Citadel for free online today in Australia. You can select 'Free' and hit the notification bell to be notified when show is available to watch for free on streaming services and TV.