NHL 2002: Atlanta Thrashers v. Philadelphia Flyers, Game 5 of the Eastern Conference Semi-Finals.
Both Dany Heatley and Ilya Kovalchuk had 2 goals, which I thought would have been enough, but John Leclair had a hat trick, and Eric Lindros scored with 13 seconds left in regulation. So, the game went into OT1. OT2. OT3 I hit the post with Lubos Bartecko, and Ray Ferraro shot a one-timer wide. OT4. OT5, John Leclair hit the crossbar on a breakaway, and Bartecko hit the post AGAIN. OT6, Eric Dejardins threw a 'what-the-hell' at the net from the point, which trickled by.
Final: Philadelphia 5, Atlanta 4.