BOS - 3
PHI - 4
BOS - 21
PHI - 25
In entirely uncharacteristic fashion, the Bruins have coughed up a two-goal lead and will head to the third trailing 4-3.
Scott Hartnell had a natural hat trick in the middle frame, tallying thrice to put the Flyers ahead.
The tough, versatile forward scored each time from the left circle, including twice on the power play.
It was a penalty-filled period for both clubs. Philadelphia earned a power-play at the 2:53 mark when Nathan Horton and Milan Lucic were given minors, while Marc-Andre Bourdon went for roughing.
At 7:28, Shawn Thornton and Jody Shelley got in a spirited bout. Thornton, the smaller of the two combatants by a wide margin, earned the win.
BOS - 3
PHI - 1
BOS - 15
PHI - 10
Twenty minutes are in the books down in Philly where the Bruins lead the Flyers 3-1.
Patrice Bergeron opened the scoring just 50 seconds in, beating Ilya Bryzgalov for his 15th of the season.
Max Talbot tied things up quickly afterward, as the puck deflected off Dennis Seidenberg's stick and past Tim Thomas.
A power-play strike from Tyler Seguin put the Bruins back on top.
Three minutes later, Milan Lucic's wicked wristwr beat Bryzgalov to push the lead to two.
Steve Kampfer was injured earlier in the frame, as the d-man was flattened coming around his own net with the puck by Brayden Schenn. It was Kampfer's first NHL game in more than a month. He did return to the bench but has not skated since.
Chris Kelly promptly dropped the gloves with Schenn. Earlier in the period, Lucic answered the bell for his late hit on Zac Rinaldo the last time these two clubs met, squaring off with Tom Sestito.