Series 3 of The Musketeers will air Saturday 28 May at 9.30pm to 10.30pm on BBC1.

The first episode resumes in war-torn France and with the odds against them, D’Artagnan, Porthos and Athos go into battle with the Spanish, while Aramis battles his conscience at the nearby monastery.

When the evil Lucien Grimaud brings the war to Aramis’ new home, the former friends reunite to foil a stolen arms deal and rescue a group of war orphans. After four years and vowing to never fight again, is Aramis still a Musketeer at heart?

Meanwhile in Paris, a sinister new battle awaits in the form of the corrupt Governor, Philippe Feron, bastard brother of Louis XIII.