: After the defeat, Ragnar's mental state worsens. He begins talking to a severed head and grows increasingly dependent on the "medicine" provided by Yidu. Main Cast "Vikings" The Profit and the Loss (TV Episode 2016) - IMDb
: Ragnar’s plan to attack by sea and land simultaneously goes horribly wrong. Rollo’s defensive chain traps the Viking ships, while fire and crossbow fire decimate the fleet. Ragnar is forced to retreat, even as he saves Floki from drowning.
: The mysterious wanderer Harbard returns to Kattegat and quickly exerts influence over the local women, including Queen Aslaug. His actions are observed by a suspicious young Sigurd.