Episode 1

S1 E1: After a new computer system is installed, mysterious financial losses start to appear in village Post Office tills. When the subpostmasters seek help, each are told that they are the only one having problems. Alan Bates, stubborn and computer-literate, refuses to put it behind him. When the Post Office goes on to accuse and harass subpostmasters for the shortfalls, Alan leads their fight back.