With the Western Conference's top team in town, there were many that said the Golden Knights' hot start couldn't continue.
But despite St. Louis mustering chance after chance after chance, despite an injury to Malcolm Subban, the Golden Knights managed to force the game to overtime and win on a goal by William Karlsson.
Vegas improves to 6-1-0, still the best start by an expansion team in league history.
Here are three immediate takeaways from tonight's game.
1. Finding a way
The Golden Knights had every reason to lose this game.
Outshot 49-22, and dominated for most of the night?
Have Malcolm Subban go down with an injury 10:50 into the third period, forcing Oscar Dansk into his NHL debut to defend a 2-1 lead?
Video: STL@VGK: Karlsson scores off Smith's pass in OT
Surrender the lead and go to overtime?
None of this deterred the Golden Knights, who got a William Karlsson goal off a 2-on-1 to win the game with 24 seconds remaining in overtime.
They say good teams find a way to win games. Tonight, the Golden Knights did just that.
2. Dansk Dansk Revolution
Malcolm Subban was the best player on the ice tonight. He stopped 37 of 38 shots, and had the Golden Knights ahead 2-1 before leaving the game due to injury with 9:10 left in the third period.
But what Oscar Dansk did tonight was extraordinary.
Video: STL@VGK: Subban leaves the ice with apparent injury
Coming in cold to make his NHL debut late in the game against the Western Conference's top team, Dansk allowed a goal on the first shot he faced, to Alex Pietrangelo.
After that, however, Dansk stopped 10 straight shots, including several of the highlight-reel variety in overtime.
Video: STL@VGK: Dansk stands strong to deny Schwartz
Not a bad way to pick up a first NHL win. For Vegas, he was just what the doctor ordered.
3. Seizing opportunities
We'll be fair on this one when we say the Blues outplayed the Golden Knights by a wide margin for most of the evening.
St. Louis owned the puck, its checking was precise, and Vegas struggled to maintain possession on the offensive zone for any length of time.
But…there's just something about these Golden Knights.
In a span of 3:33 late in the second period, Vegas capitalized on two of its few chances.
First, Reilly Smith got the Golden Knights even on the power play by firing a slap shot that richocheted off a Blues defenseman and past Jake Allen.
Video: STL@VGK: Smith pots PPG off defender to knot score
Colin Miller followed up by using a rocket of a shot to beat Allen, also on the power play.
Although St. Louis' hiccup was brief, the Blues left the window open ever so slightly. And on a night St. Louis could have won in regulation, this allowed Vegas to take the game to overtime, where one shot could win the game.
And William Karlsson's did.