CANTON — Great teams just find a way to win.

That’s at least what Hingham boys hockey head coach Tony Messina told his players in their locker room Sunday night at Canton Ice House, after the No. 1 Harbormen (4-0) had to rally twice and hold off a late charge from No. 15 Archbishop Williams to secure a 6-5 win in the Arrow Sports Group Holiday Classic championship game.

Cam McKenna’s two goals led five different scorers for Hingham, which stepped up to score five goals over the second and third periods after trailing 2-1 at the end of the first. The importance of all five was felt by game’s end, with the Bishops (2-3) nearly rallying from a 6-3 deficit in the final four minutes by scoring twice, and by generating a quality bid at the doorstep goalie Mike Karo (23 saves) held off about 20 seconds before the final buzzer.

The Harbormen don’t find themselves in too many 11-goal nail-biters. But to show it can win them, against a group that similarly rallied past Xaverian on Friday, spoke volumes.

“It’s just important to win, it doesn’t matter what the score is,” Messina said. “(We) stepped up and grinded out the last two periods.”

“That’s huge,” McKenna added. “A little sloppy at the end there, we didn’t want to give up those two goals. But a win’s a win and it’s good to win that tournament. … I think we’ve set the tone that we’re the team to beat, still staying undefeated. We’re just going to keep going into the new year.”

Hingham’s Colman Donahue, center, and Andrew Palek, right, hug after scoring a goal against Archbishop Williams on Sunday in Canton. (Kylie Cooper/Boston Herald)

Archbishop Williams bombarded Karo in a 10-1 shot advantage in the game’s first eight minutes. Hingham took the early lead on a goal from senior Andrew Palek on a shot from the point with 7:59 left in the first, and from there, offenses erupted.

Bishops star senior Finn Kelly, who netted a hat trick against Xaverian, tied the score at 1-1 just 16 seconds later. Karo had several big saves throughout, though it only took three more minutes for Archbishop Williams to gain a 2-1 lead on a goal from sophomore Quinn Taylor. Hingham followed a barrage on Archies goalie Sean Velozo (19 saves) at the end of the first with a Robert Dixon goal two minutes into the second period to tie it, only for sophomore Jack Healy to retake a 3-2 lead for the Bishops about a minute later.

All four of Hingham’s lines played well, with three scoring. And after Conal Mulkerrin scored late in the second period to knot the score again, the Harbormen held Archbishop Williams off until Mulkerrin dished a highlight-reel pass to McKenna on the power play for a 4-3 lead with 43 seconds left in the frame.

“They’ve got guys that can score some goals, but so do we,” McKenna said. “Our first line, the last two games, we have at least five goals. … We’ve got so many guys that can put the puck in the net. Three of our lines (had) points this game, (that) shows anyone can bury it.”

Depth came up clutch from there with much-needed insurance. Third-liner Colin Garrity extended the lead to 5-3 with 11:26 to play, and McKenna scored his second goal 26 seconds later.

Archbishop Williams celebrates after scoring a goal during a 6-5 loss to Hingham. (Kylie Cooper/Boston Herald)

“I think (all the goals were) needed,” Messina said. “I mean, in that type of game. I know Finn Kelly, coached him in the summer and know what he’s capable of. As I told these guys before the game, he’s not just a great player, he makes everyone around him great too. … It wasn’t just playing physical on him, it was more, kind of, playing swivel-headed. Make sure you have everyone kind of covered, and we didn’t the whole time.”

After a timeout with four minutes left, Archbishop Williams gained some steam on a goal credited to Kelly at the goal line that Steve O’Malley lifted over Karo into the crossbar that found its way in for a 6-4 deficit. Freshman Jake Guerriero then cut it to 6-5 with 2:15 to go.

Archbishop Williams pulled its goalie with just under a minute left, and generated a rebound at the doorstep by the left post in the final 30 seconds. But the shot floated through the crease along the goal line, and Hingham held on.