The USA got off to a flying start against Canada and silenced the red and white fans in Halifax after ten minutes.
Then Logan Cooley had managed to make it 1-0 after 79 seconds of play, and after 10.30 it was 2-0 to the USA when Kenny Connors stayed in front on a rebound.
A shocked home crowd, who a minute later would see a super talent do exactly what leading players should do when faced with adversity.
Connor Bedard scored his 22nd point in the sixth game of the tournament when he drove toward the goal after an offensive draw where he received a perfect pass from the corner of the corner where Ethan Del Mastro took the puck.
It was the start of a turnaround from Canada.
In the second period, the team scored three goals on 13 shots on goal.
4-2 to Canada before the third period, which probably felt extra sour for the USA when they thought about how they created at least as many goal chances and also had a goal disallowed for goalkeeper interference.
The third period began with a long press from the USA against the Canadian goal.
But in the box was a dense Thomas Milic who saved Canada.
And the only puck he let past him in the third was ruled out, also for goaltender interference where Milic had the puck under his shin pads that was pushed away.
And amid the pressure from the USA, Canada stepped up with dangerous turns of play, and with ten minutes remaining a lead goal came when Brandt Clarke was clean in the castle where he found the right cross to make it 5-2.
Canada then punctuated the match 6-2 in an empty cage.
The USA will thus be Sweden's opponent in the bronze medal match, which will be played already tonight, 20:38 Swedish time.