Steven Stamkos recorded his eighth career hat-trick and defenceman Victor Hedman played a part in four goals as the Tampa Bay Lightning handed the Montreal Canadiens their first loss of the season in a 7-1 drilling.
Stamkos, who had no goals in Tampa Bay's (2-0-1) first two games, scored the Lightning's second goal Monday on a wide shot with 10:09 left in the opening period.
He scored again on a breakaway with 6:45 left in the second, then added a power-play goal five minutes later for a 4-1 lead.
Hedman, who opened the scoring with his third goal in as many games, collected assists on the next three. Right winger Nikita Kucherov contributed two assists.
The Canadiens (3-1-0) came in as the NHL's first 3-0 team, following two shootout wins, but Tampa Bay (2-0-1) never let the game get that close.
Elsewhere, rookie center William Karlsson scored the first two goals of his career to lead the Anaheim Ducks to a 5-1 win over the Buffalo Sabres.
Clarke MacArthur broke a scoreless tie late in the second period and goalie Craig Anderson got his first win of the season as the Ottawa Senators beat the Florida Panthers 1-0.
Daniel Briere scored on a rebound with less than a second to play to lift Colorado to their first win of the season in a 2-1 victory overthe Bruins.