BBC确定《火枪手》即将播出的第三季就是最终季,据称有可能是5月回归,也可能更晚。Athos, Porthos and d'Artagnan have been at war, while Aramis has been at the monastery caring for the children left orphaned. Missing munitions brings the three to the monastery where the bad guys have taken refuge. As they scheme to stop the stolen munitions from being sold to the Spanish and save the Monks and the children, Aramis is forced back into battle and has to decide where he truly belongs.