Series Four Part 1 of the ITV programme Foyle's War was first aired in 2006; comprising two episodes, it is set in 1942. Series Four Part 1 was broadcast in the United States on PBS on Mystery! on 17 and 24 June 2007, and on Netflix as of April 2014. Together with Series Four Part 2, it was broadcast as Foyle's War IV.
American "Doughboys" arrive in Hastings, resulting in some hostility from the locals. An old friend of Milner's dies in a house fire, and a barmaid is found dead at the welcoming party for the American soldiers, with one of the Americans as a suspect.