Mike Heitzmann's strike helped the Terps walk off the Scarlet Knights with a 5-4 edge in penalties.
Jared Bernhardt, Anthony DeMaio, Bubba Fairman and Daniel Maltz accounted for all but two of the Terps' goals.
Wolverines goalkeeper Anna Spieker made five saves.
The Terps' bats fell quiet in game one but roared to life in game two for a mercy-rule victory.
A crazy fifth inning saw three batters cross the plate for the Cornhuskers, dooming the Terps.
The junior led the Terps in scoring last season, averaging 15.1 points per game.
Two Terps also made the all-freshman squad.
Wiggins earned all-Big Ten honorable mention honors last season.
The Terps have not clinched a series at the Maryland Softball Complex in nearly three years.
"One of the reasons why those guys are so successful is how well they're working together."