LAS VEGAS — One shot.

One measly shot.

That’s the amount of total offense the Vegas Golden Knights generated in the second period of Game 1 of their second round Stanley Cup Playoffs series against the Edmonton Oilers Tuesday night.

Normally, a team can overcome a power outage like that and get back on track in the third period. The Knights, who had an early 2-0 first-period lead, saw the advantage evaporate as their offense went into hibernation and pretty much stayed hidden.

Ultimately, the Oilers did what they do best, get the puck to their best players and let them do their thing. And when Vegas was unable to respond in kind in the third period, it gave the Oilers confidence and resulted in a 4-2 victory at T-Mobile Arena.

Game 2 is Thursday night at 6:30 p.m.

“They elevated their game and we didn’t,” Vegas coach Bruce Cassidy said as his team lost home-ice advantage in the series as a result. “We didn’t execute well enough.”

After being one-hit wonders in the second, The Knights didn’t fare much better in the third period, managing just six shots against Calvin Pickard. But it’s all the ones that missed the net they are lamenting. Nic Roy didn’t hit the net five times. William Karlsson and Brett Howden shot wide three times apiece. Jack Eichel had a pair that missed the mark.

In all, 23 shots failed to hit the net. And in a game where you had just 17 total shots on goal, that hurts. A lot.

“We have to hit the net with our chances,” Cassidy said.

The way things started, it looked like it was going to be a celebratory scene for the 18,111 at T-Mobile. Mark Stone scored twice in the first 9:03 and Pickard, the goaltender who was drafted first by Vegas in the 2017 NHL Expansion Draft but never played for the Knights, appeared to be headed for a long night. For Stone, it was his 36th postseason goal, tying the franchise record.

But the Oilers regrouped. Connor McDavid and Leon Draisaitl led the comeback and Corey Perry, the 39-year-old veteran, scored to cut the deficit to 2-1 with 3:02 to go in the period.

“Our start wasn’t good,” Perry said. “But we stuck with our game plan, we settled in and got to our game.”

Meanwhile, the Knights’ offense went into cold storage as Edmonton tightened up defensively. McDavid and Draisaitl turned up the pressure offensively and early in the third period, the Oilers drew even as Draisaitl was the recipient of a lucky bounce and pushed it past Adin Hill, who was having a strong game in the Vegas net until that point.

“Our game doesn’t change,” Perry said. “We just kept going at them and made some plays off the rush.”

Zach Hyman scored what would be the game-winner with 3:02 to play and Connor Brown made a sweet one-on-one move to get by Shea Theodore and beat Hill 76 seconds later to seal the Game 1 win.

Yes, it’s only one game and yes, things can change. But the Knights know full well what they’re dealing with. Cassidy tried to match power vs. power by having Eichel, Stone and Karlsson go against McDavid, Draisaitl and Perry as often as possible. And while each line had success against the other, ultimately, the Oilers’ depth helped them prevail.

“They got some good O-zone time and they started feeling good about themselves,” Stone said. “We had to kill a couple of penalties in the second period and that got us on our heels a little bit.

“I didn’t think we were clean through the neutral zone. It is what it is. It’s not the outcome we wanted.”

Remember, Vegas trailed in its first-round series against Minnesota 2-1 and came back to win and advance. But this task seems more difficult and to let a game you were in control of slip away the way the Knights did Tuesday has to be disconcerting.

Don’t expect any panic in the Vegas locker room. The Knights were without veteran defenseman Alex Pietrangelo for Game 1 as he was ill and unavailable. Kaedan Korczak got his first playoff experience in Pietrangelo’s place and played 13 minutes.

Pietrangelo would figure to be back in the lineup for Game 2. Perhaps Pavel Dorofeyev, the team’s leading goal scorer in the regular season who missed his third straight postseason game with an upper body injury, may be ready to return Thursday as well.

But what will need to change is getting Pickard to work harder. Seventeen shots is not going to be enough.