The defending Eastern Conference champion Boston Bruins won't play their first home game until Saturday.
Stone scored on the power play at 6:36 of the first period for a 1-0 lead, and Reilly Smith made it 2-0 at 8:20.
However, that spurred Boston's own trio of big hitters into action as arguably the best line in all of hockey right now clicked into place following a quiet first two games of the season, where only Patrice Bergeron and Brad Marchand recorded a point each.
Costly turnovers coupled with a worrying lack of production from their bottom six forward unit transpired to really hurt the Golden Knights, who are now 2-1-0 to start the year and there are more tough tests to come in the month of October. Rask finished with 31 saves and was a rock in the third period as the desperate Golden Knights began throwing everything at the Boston net.
Later with the game tied at two, Marchand broke into the offensive zone and sent a shot over the glove of Knights' goalie Marc-Andre Fleury.
For the first time this season, the Bruins found themselves trailing, however. Max Pacioretty got one on the board for Vegas but it wasn't enough.
They only had three opportunities and scored on just one of them, however, the Bruins power play looked like the unit that was a strength a year ago. It was Stone's second goal and fifth point of the year.More news: Errol Spence Jr. suffers serious injuries in auto crash
More news: Watch Zion Williamson Throw Down Devastating One-Handed Dunk In Debut
More news: Turkish forces launch military attack against Kurds at Syrian border
"It's good to play a different team, a good skill team coming out of the east, it's going to be a good challenge for us", Vegas defenseman Shea Theodore said.
Shots on goal in the first favored Vegas, 12-10. We're pretty much all together again.
David Pastrnak had one goal and two assists for the Bruins, who started the season on a four-game road trip.
"We've got to respect them, but we've also got to be hard on them", McNabb said. He gave it to Brad Marchand, who found a streaking David Pastrnak for the goal at 11:21.
Boston has scored on one of its power-play attempts this year, a far cry from its 25.9% effectiveness that was third-best in the league last year.
Bruins fans were ready to see the Bergeron break out, and they got their wish against the Golden Knights. The Golden Knights have converted on one of their seven power plays, and both teams have been flawless on the penalty kill so far.