Russian Empress Catherine the Great faces challenges to her throne on all sides, as she meets the forthright and bold Lieutenant Grigory Potemkin.
Pressure from foreign powers leads to a bitter argument between Catherine and an ailing Potemkin. Catherine works to change the line of succession as her reign draws to an end.
The sale of a previously unknown painting by an 18th century painter sends Barnaby into an investigation of murders as well as art forgery.
While accompanying his friend Hastings to a dig in Iraq, Hercule Poirot becomes involved in the murder of an archaeologist’s wife.
