Montreal responded quickly after the Hagelin goal, shrinking its deficit back to two with a Rem Pitlick goal at 4:09 to make it a 3-1 contest.
Some 69 seconds later, Snively struck for a second time to restore the Caps' three-goal cushion and ending Primeau's night. Evgeny Kuznetsov sent Snively into Montreal ice with a long stretch pass. In a one-on-one situation with veteran blueliner Jeff Petry, Snively smoothly cut to the middle and used the shooting lane to beat Primeau on the glove side for a 4-1 Washington lead at 5:18.
"I thought I came in at an angle where I could get a triangle and get to the middle with some open space," recounts Snively. "One I got there, I just had to beat the goalie and luckily I put it past him."
Primeau departed after permitting four goals on 15 shots in 25:18 of work, yielding the crease to Samuel Montembeault.
Montreal pulled a goal closer on a power play late in the second. After a neutral zone regroup, the Habs re-entered Washington ice. Nick Suzuki hit Cole Caufield with a feed from the left half wall, and Caufield lifted a backhander past Samsonov from the bottom of the circle to make it 4-2 at 15:58 of the middle period.
The Habs pushed hard in the third, aided by a pair of early power plays. Samsonov had double-digit shot totals in each period and he stopped all 16 shots he faced in the third. With just over five minutes remaining, the Habs appeared to have scored to make it 4-3, but the Caps issued a successful coach's challenge to nullify the goal because Montreal was offside on the play.
With more than three minutes left, St. Louis pulled Montembeault for an extra attacker. Samsonov made perhaps his best stop of the night soon after, sprawling to deny Suzuki from in tight.
In the game's penultimate minute, Snively got hold of the puck in neutral ice. Rather than taking a shot at the empty net for the hat trick, he unselfishly fed Tom Wilson for an empty net layup at 18:45, accounting for the 5-2 final.