Hercule Poirot, a famous Belgian detective, who has an impeccable knack for getting embroiled in a mystery, solves crimes along with Captain Hastings and Scotland Yard Chief Inspector James Japp.
As WWII rages, DCS Foyle fights his own war on the home-front; investigating crime on the south coast of England. Later series, see the retired detective working as an MI5 agent in the aftermath of the war.