Foyle's War (series 4)
Series 4 of the ITV programme Foyle's War was first aired in 2006. It is the only series to be divided into two parts, one comprising two episodes screened in 2006, and the other comprising two from 2007. It was the last series of four episodes; later series had only three. It is set in the period from March 1942 to March 1943. Episodes (Part 1) "Invasion" Cast and characters The episode marks the transfer of Station Sergeant Ian Brooke to Hastings from Deptford in London, and also the arrival of Captain John Keiffer and his 215th Engineer Battalion (Aviation) who plan to establish a US Army Air Force landing field nearby. Foyle is befriended by Keiffer, an engineer from Northbridge, Massachusetts, in a relationship that deepens since the two share a common interest in fly-fishing. Keiffer also mentions the loss of his younger brother on the Reuben James in October 1941. Milner's friend, Will Grayson, is a fellow survivor of the failed Norwegian Campaign and the man who helped rescue and evacuate Milner from Trondheim. Stewart meanwhile receives a Dear Jane letter from Andrew Foyle, who is now stationed at RAF Debden, and as a result she accepts a