Vikings are not a people and how connected the people in this era are to today's modern day Danes Norwegians and Swedes is iffy. The idea of ethnicity and Cultural aspects and everything else is Frought with all sorts of baggage. There's a certain historical irony that the people's who will put the lion's share of sweat into extinguishing these old gods These ancient deities are People who once believed in them themselves.
This show picks up where Dan's Thor's Angels show left off. In the early Middle Ages Pagan Germanic-language speakers like the Vikings are a dying breed. Many of their contemporaries wish they'd die faster.