Young swordsman d'Artagnan and his father are on their way to Paris to petition the king when they are attacked at an inn and d'Artagnan's father is killed naming Athos as the killer. Seeking out Athos he has to fight Athos, Porthos, and Aramis until interrupted by Treville who arrest Athos for murder. The king orders Athos's execution. To prove Athos's innocence Porthos and Aramis have to recover letters stolen from the kings messenger by Red Guard men pretending to be musketeers. d'Artagnan accompanies them to discover the truth.
Vadim is determined to make life as unbearable that is possible for the authorities that have imprisoned him. After he manages to organise a full-scale riot, it falls to the Musketeers to protect those whom he is determined to destroy.