Junior Tyler McGregor (Ajax, Ont.) led the Crusaders with two game-tying goals in the third and added a helper for a three-point night, while freshman Matt Werry (Regina, Sask.) scored his first collegiate-goal in style as he netted the game-winner.
Senior captain Andrew McKay (Bellefeuille, Que.) led the rally when he scored his fifth marker of the season at 6:17 in the third, which help from junior assistant captain Pierre Napert-Frentte (Bathurst, N.B) and McGregor.
The Crusaders would wait eight minutes before netting their third tally of the night, when McGregor pocked his first goal of the evening at 14:15, tying the game at three-all. Napert-Frenette assisted on the play.
The Lakers took the lead one last time, when David Wrigley scored at 15:50. He was assisted by Scott Champagne and Rich Hansen.
McGregor posted his second game-tying goal on a man-up opportunity, less than a minute later to even the score at 4-4. Sophomores James Sixsmith (Alexandria, Va.) and Jon Landry (Lexington, Mass.) were credited with the assists.
With less than 2:30 in the period, Werry found the back of the net to score his first-career goal, the game-winner, at 17:34 in the third, with help from freshman Cal St. Dennis (Freelton, Ont.) and senior Jonas Tomiuck (Wainfleet, Ont.).
Entering the second stanza the Crusaders were down, 1-0, but freshman Dale Reinhardt (Livingston, N.J.) put Holy Cross on the board with a power play goal at 3:08 in the period. Sixsmith and sophomore Frank O'Grady (Kimberley, B.C.) assisted on the play.
Holy Cross netminder Tony Quesada (South Freeport, Maine) made 32 saves for the win, while Andy Franck halted 23 shots on goal for the Lakers.
Mercyhurst would answer with two more goals in the second to take the lead, 3-1, entering the second intermission. Ben Cottreau netted the Lakers second goal at 11:51. Wrigley followed with his first goal of the game at 16:14.
The Crusaders travel to Buffalo, N.Y. to take on Atlantic Hockey foe Canisius, Saturday, Jan. 15 at 3 p.m. at the Buffalo State Sports Arena. Holy Cross' next home games are not until Friday-Saturday, Jan. 28-29 against Canisius, since the Crusaders' Jan. 21 contest against Quinnipiac has been moved to Feb. 12 at the FleetCenter in Boston, Mass. at 5 p.m.