The BBC synopsis reads: "Against a background of prejudice, distrust and powerful rebellion mounting on the streets, a passionate romance builds between Sephy and Callum which will lead them both into terrible danger".

[1] The series takes place in present-day London in an alternative history where, 700 years prior, several nations in what is presently West Africa combined to form the powerful Aprican Empire and went on to colonise Europe.

[4] Russia and the Balkans remain in active conflict with the Aprican colonisers, although since the Great World War their national borders have been pushed back.

As of 1950, racial segregation is rigidly enforced in the colony between those of wealthy Aprican descent (known as Crosses or daggers) and the poorer native Europeans (known as Noughts or blankers).

[3] In New Zealand, the series is available on the free streaming service TVNZ On Demand, while in Australia it was first screened on pay television channel BBC First in September 2020 and is also distributed by Foxtel on their platform.

[20] The Guardian's Josh Lee gave the television series four out of five stars, describing it as a "reverse-race love story that is vital viewing."