It did not take long for the Capitals to come back. Washington came out for the second period and was able keep the pressure in the Bruins zone and turned the aggression into a game-tying goal at 2:04 when defenseman Tom Poti carried the puck hard down the left wing and centered to a crashing Mike Knuble. Boston goaltender Tim Thomas  was not quick enough across the crease and the Capitals were back in the at a goal apiece.
Then something happened that you do not see in regulation NHL  hockey all that often — a penalty shot awarded on a shorthanded breakaway. With Marco Sturm  in the box for holding, David Krejci  found himself alone with the puck facing down Capitals goaltender Jose Theodore. Knuble caught Krejci from behind and hooked him a couple of times and Krejci missed the ensuing shot. The officials gave Krejci a penalty shot, which he subsequently missed wide right to end the unusual drama.
The Bruins still had to kill off Sturm’s penalty and he was joined by Patrice Bergeron  at 11:09 to give Washington a :19 second two-man advantage. Boston killed off both and were able to turn around and put some pressure on itself a couple minutes later. Alexander Semin took went to the penalty box for a hook (his third penalty of the game) after Blake Wheeler  and David Krejci had multiple opportunities against Theodore that Washington was able to thwart. Boston had more opportunities on the ensuing power play with Bergeron hitting a post as the Bruins rained shots on goal.
After the rocky start to the period, the Bruins have stayed tough and stayed within their game and have been able to generate shots and keep Alex Ovechkin  from causing any havoc on the ice.
Second period shots (total):
Bruins 16 (29)
Capitals 12 (17)