Britannia is a drama set in 43AD as the Roman Imperial Army - determined and terrified in equal measure - returns to crush the Celtic heart of Britannia - a mysterious land ruled by warrior women and powerful druids who can channel the powerful forces of the underworld.
Britannia, which is weird and druggy and at times howling mad, is rather funny. It definitely won't be everyone's cup of tea, but it is a bit of a riot. You might not expect that of something that has extreme violence as its meat.
The female characters are fantastically strong, from Zoë Wanamaker's blood-curdling Queen Antedia to indomitable princess Kerra, played by Kelly Reilly like someone with the sun permanently in her eyes.
Britannia is the kind of programme in which you need to keep your wits entirely about you in order to keep track of the games of three-dimensional chess every character is playing or abandon them altogether and just enjoy.