Pat Maroon scored the winner for St. Louis with just 138 to go in the third period
The St. Louis Blues came out on top after a wild third period.
Pat Maroon flicked a puck over Stars goalie Ben Bishop with just 1:38 left in the third period as St. Louis beat Dallas 4-3.
Both teams scored twice in under six minutes in the third.
The Blues' win is good for a 2-1 lead in the NHL Western Conference semifinal series.
Game four of the series goes Wednesday night in Dallas.