The year is 1402. Margrete has achieved what no man has managed before. She has gathered Denmark, Norway and Sweden into a peace-oriented union, which she single-handedly rules through her young, adopted son, Erik. The union is beset by enemies, however, and Margrete is therefore planning a marriage between Erik and an English princess. An alliance with England should secure the union's status as an emerging European power but a breathtaking conspiracy is under way that can tear Margrete and all she believes in apart.