Dizi Adı: Vikings
Bölüm Adı: A Good Treason
Sezon/Bölüm: 4. Sezon 1. Bölüm
Yayın Tarihi: 18 Şub. 2016

A dangerously ill Ragnar returns to Kattegat, where his suspected death kicks off a scramble to succeed him. Meanwhile, Lagertha engages in a power struggle with her calculating, former second in command, Kalf. Rollo betrays his heritage and remains in Frankia. Floki pays the price for his brutality against the Christian priest.