Watch Vikings Season 4 Episode 20 online via TV Fanatic with over 8 options to watch the Vikings S4E20 full episode. Affiliates with free and paid streaming include Amazon, iTunes, Vudu, YouTube Purchase, Google Play, Hulu Plus, Amazon Prime, and Verizon On Demand.
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On Vikings Season 4 Episode 20, Ecbert stays behind in order to formulate his own plan, while Prince Aethelwulf is targeted by the Vikings' battle plan.