When the Chicago Blackhawks were on the brink of playoff elimination, they had the feeling that all they needed was one win to turn it around. They were right. Brent Seabrook sent a wrist shot past Jimmy Howard's glove 3:35 into overtime, and the Blackhawks completed an improbable comeback with a 2-1 victory over the Red Wings in Game 7 of their second-round playoff series on Wednesday night.