We Are the Garrison (S03E10)

In the wake of a devastating tragedy, Grimaud declares war on the Musketeers – starting with the people they love. Still blinded by grief, will the Musketeers see him coming before it's too late? With the personal stakes at an all-time high, our heroes and their supporters must fight to defend a city on the brink of destruction against their most relentless enemy yet. (iTunes)