Troy Brouwer's power-play score late in regulation lifted the Washington Capitals over Boston 4-3, in Game 5 of this Eastern Conference quarterfinal set.
Alexander Semin, Jay Beagle and Mike Knuble also lit the lamp for the Capitals, who have taken a 3-2 series lead and can close out the defending champions at home on Sunday afternoon.
Braden Holtby stopped 34-of-37 shots.
Brad Marchand, Dennis Seidenberg and Johnny Boychuk tallied for the Bruins, who are in danger of being eliminated in the first round for the first time in four years.
Tim Thomas allowed all four scores on 32 shots.