Alexander Radulov scored at 18:34 of overtime to lift the Montreal Canadiens to a 4-3 victory over the New York Rangers on Friday night.
Radulov jammed the puck in from the edge of the crease after a feed from Max Pacioretty.
The best-of-seven Eastern Conference quarter-final is tied 1-1 with Game 3 set for Sunday night in New York.
Trailing 3-2 in the third period, the Canadiens pressed hard and finally scored with 18 seconds left, with goalie Carey Price pulled, as Tomas Plekanec redirected a Radulov feed past Henrik Lundqvist to force overtime.
Michael Grabner, Mats Zuccarello and Rick Nash scored for New York. Jeff Petry and Paul Byron also had goals for Montreal, which wasted early leads of 1-0 and 2-1.
Montreal outshot the Rangers 45-30 in regulation time and 58-38 overall.
TSN 690 will broadcast Sunday's game beginning at 7.