Brian Gionta scored his second goal of the game at 13:13 of the third period to snap a 3-3 tie and the Canadiens went to beat the Detroit Red Wings 5-3 Saturday night at the Bell Centre. Alex Galchenyuk was credited with an insurance goal at 15:40 when Tomas Plekanec’s shot went in off his arm. The win tightened the Canadiens’ grip on second place in the Atlantic Division. They have 97 points for a four-point edge over Tampa Bay, which lost 5-2 to Dallas. The Lightning has four games remaining, while the Canadiens have three. Coming back: The Red Wings, who are clinging to one of the final playoff spots in the Eastern Conference, used the power play to get back into the game. Pavel Datsyuk cut the Montreal lead to 3-1 when he scored a power-play goal at 5:11. Luke Glendening brought the Red Wings closer when he scored 36 seconds later. Niklas Kronwall pulled Detroit even at 3-3 when he scored on a power play at 10:44. He scored on a shot from the blue line through traffic. The Red Wings’ power play went 2-for-5 against the third-best penalty-killing unit in the NHL. The Canadiens were 0-for-2 on the power play.