There is still time to get caught up in this downbeat dramedy, which, with typical Toby Jones understatement, has quietly become one of the best things on television. In this fourth episode, coach driver Peter (Jones) comes a cropper explaining Shakespeare to a Japanese tourist, but he is soon back tackling more topical national anxieties, such as how much responsibility to take for the refugee crisis. It is an abstract problem made flesh by his house guest Rita (Luwam Teklizgi).