When does Hard Sun return?

Hard Sun is a pre-apocalyptic British crime drama series, created and written by Neil Cross, starring Agyness Deyn and Jim Sturgess. The series is a BBC co-production with the American streaming service Hulu. The protagonists are two mismatched police officers, Charlie Hicks and Elaine Renko, who stumble upon proof that a mysterious cosmic event will destroy the earth in five years, a fact the government is trying to keep secret to avoid complete anarchy. It was cancelled after one season.
Hard Sun is a pre-apocalyptic crime drama set in contemporary London. The protagonists are two mismatched police officers, Charlie Hicks and Elaine Renko. They stumble upon proof that a cosmic event will destroy the earth in five years.