Colton Sissons put Vegas ahead 2-1 with his first goal of the season at 5:36 of the second period. Nedeljkovic stopped Keegan Kolesar's initial shot on a 4-on-1 rush, but the puck trickled into the crease, where Sissons poked it just over the goal line.
“Just made a good hard play coming out of our end, and ‘Koley’ and I had a 2-on-1 from basically the top of the circles,” Sissons said. “Fortunately, squeaked through the goalie and barely got it across the line. Found a way.”
Marner extended the lead to 3-1 at 7:02. He got Nedeljkovic to overcommit on a rush at the right post, allowing him to tuck the puck in on a wraparound.
It was his first goal since Nov. 6 (ended an 11-game drought).
Hertl scored his second of the game at 12:38, redirecting Marner's slap shot from the above the circles on a power play to make it 4-1.
Smith also scored his second of the game on a power play to cut it to 4-2 at 14:40. Macklin Celebrini forced Kolesar to turn the puck over into the low slot, where Smith quickly capitalized.
“I got a bunch of good looks,’ Smith said. “When they start going in, you feel good and just want to keep shooting.”