The Habs were up 4-1 after 40 minutes of play and led 25 to 14 in shots on goal.
In the third period, Peter Laviolette called a timeout which gave his squad enough momentum to cut into Montreal's lead with a marker from Nicklas Backstrom.
That goal didn't faze the Habs though, as Armia went on to complete his second career hat trick. Rafael Harvey-Pinard, who returned to the lineup after missing two games, got an assist.