A informação (dentro da opção "Enviar legenda" ) pelo Legendas.net está equivocada, trata-se do episódio 04 da 4ª temporada, há 4 episódios, embora a opção "Enviar legenda" mostre apenas dois episódios.

Na página

https://www.imdb.com/title/tt0310455/episodes/?season=4&ref_=ttep

há o detalhamento CORRETO, a seguir:

S4.E3 - Bleak Midwinter : Sun, Feb 11, 2007
The death of a woman in a munitions factory becomes linked with the murder
of Milner's estranged wife as he falls under suspicion and Foyle strives to clear
his name.

SA4.E4 - Casualties of War Sun, Apr 15, 2007
Foyle has his hands full dealing with illegal gambling, sabotage, and his needy
goddaughter who shows up on his doorstep with her traumatized son.