Notorious criminal, Vadim, seeks to make life unbearable for the authorities that have imprisoned him. When he engineers a full-scale riot it falls to the Musketeers to protect those whom he seeks to destroy.
Following the tragic death of a young girl underneath the royal carriage, the Musketeers investigations into her missing friend lead them into the world of a high-born and enlightened woman, Ninon, who really gets under Athos’ skin.
Queen Anne’s taking of the waters is cut short when her life is put in mortal danger. Meanwhile Louis dines with wealthy German banker, Count Mellendorf, who is looking for a French match for his beautiful daughter.