Recaps

Viserys explained why he planned to build an army from southern prisoners rather than rely on northern levies. Jarman Buckwell returned to Castle Black with news that wights had overrun Caste's Castle and were appearing along the roads, while Beric Dondarrion remained behind to investigate.

• Dareon corrected a nervous southern recruit and told the prisoners to adapt their fighting to the cold and prioritize survival.
• Daenerys questioned whether the southern prisoners could defend against the Others, and Viserys explained that their desperation made them useful recruits for an army loyal to the Iron Throne.
• A warning horn sounded as Jarman Buckwell and other Rangers returned to Castle Black in alarm.
• Jarman told Viserys that wights had passed through Caste's Castle and that Beric Dondarrion had taken some Rangers there to investigate and seek survivors.
• Jarman reported encountering wights repeatedly on the return journey and said the Black Brothers who had fled Caste's Castle could provide more details.