GRAND RAPIDS, Mich. -- Derek Hulak got the Griffins on the board first with a goal in the second period, but the Wolves scored the next three on their way to a 5-2 win in Game 4 Wednesday at Van Andel Arena.
Turner Elson scored the Griffins' second goal just over two minutes into the third period to cut the deficit to 3-2, but Chicago added a pair of empty-netters late to ice the game.
The Wolves were 2 for 4 on the power play while Grand Rapids was 0 for 3.
The series is now tied at two games apiece with the decisive Game 5 scheduled for Sunday at 3 p.m. in Chicago's building.