When does The Third Day return?

The Third Day is a drama-thriller television series created by Felix Barrett and Dennis Kelly for HBO and Sky Atlantic. The series chronicles the individual journeys of a man and woman who arrive on a mysterious island at different times. The production is split into three interconnected parts. The first, "Summer", directed by Marc Munden, follows Sam (played by Jude Law), a man drawn to the island off the English coast. The second part of the production, "Autumn", was broadcast in the format of a 12-hour live event on the island, described by the producers of the show as a "major immersive theatre event"
The series chronicles the individual journeys of a man and woman who arrive on a mysterious island at different times. The production is split into three interconnected parts. The first, "Summer", follows Sam (played by Jude Law), a man drawn to the mysterious island off the English coast. The second part of the production was broadcast in a twelve-hour live event on the island.