Thefourthseasonof"AllCreaturesGreatandSmall"willcommenceinthespringof1940,atimeofchangethatloomsoverSkeldaleHouse.AsJamesandHelenpondertherightmomenttostartafamily,uncertaintyarisesastowhetherJameswillbecalledtoserveintheRAF.Tristan'sabsenceisdeeplyfeltbyall,butnoonemorethanSiegfried,whostrivestoholdboththegrowinghouseholdandhimselftogetherastheynavigatethisnewworld.Meanwhile,thefriendshipbetweenMrs.HallandHelenflourishesastheyembracethefuture,whilecomplicationsarisewithinthehousewiththearrivalofRichardCarmody,anewtraineeveterinarystudent.gt