The Orange & Blue maintained the momentum they sparked in the second period and much of it was fuelled by the top line. Through the early minutes of the frame, Edmonton went on a 7-0 shot run causing all sorts of mayhem for Calgary.
Amid the onslaught, Drake Caggiula was injured. As the Oilers were breaking out of their zone and Caggiula was about to change off the ice, he collided with Calgary winger Garnet Hathaway, who was also on his way to the bench. Caggiula stayed motionless for a few seconds but got up and left to the Oilers Dressing Room. The forward returned to the ice late in the period.
Smith continued shutting the door in his first start with the Flames organization, keeping the game within one through the middle frame. At one point, a Klefbom clapper raised up on the netminder, catching him square on his mask and knocking it off his head.
"That one was one of the hardest shots I have ever seen," said McDavid. "I don't understand how Smith popped up like that but that was a great shot."
The former Arizona Coyotes netminder, who had stopped 26 of 27 shots at the time, went down but popped up immediately seemingly unfazed - and it showed when he made a desperation save on Maroon later in the period.
Draisaitl entered the Flames' zone, attracting three Calgary players towards him. The Deutschland Dangler then transported the puck over to Maroon but Smith got a piece of his wrist shot to keep the game 1-0.
In the third, Maroon, McDavid and Draisaitl maintained their oppressive play. Working from behind the net, McDavid got a puck through to Draisaitl, who mustered a shot on goal from his knees but Smith snared it.
McDavid, already with one goal on five shots in 16 minutes played, added his second marker of the night on his sixth shot. The 20-year-old picked up the puck in the Oilers zone and turned up ice. The centre pulled away from the Flames' players chasing him, barreling down on Smith while handling a rolling puck. McDavid settled it flat just in time for him to roof it over Smith's glove for his second of the game and season. The goal was unassisted.
"Just an unbelievable goal by an exceptional player," said Talbot. "He picks the puck up at our hashmark and just out-skates everyone. Every time he gets the puck he has that ability."
McDavid added an empty-netter to record the hat trick - becoming the first Oiler in franchise history to do so in a season opener.
Next up for the Oilers is a meeting with the Vancouver Canucks on Saturday. Puck drop is at 8 PM MDT and the game can be watched on Hockey Night in Canada.