Katla 1x5 Northerly Winds Season 1 Season 1 8 Episodes 1x1 - From Under the Glacier 1x2 - Ása 1x3 - The Mother 1x4 - This Is Not Him 1x5 - Northerly Winds 1x6 - Grima 1x7 - The Rock 1x8 - I Am You A shocking revelation that would ordinarily offer closure instead opens up a chasm of questions. History repeats itself as a deadly ash storm gathers.