The Husker defense stepped up big in the fourth quarter.
Senior safety Nate Gerry intercepted Wisconsin quarterback Alex Hornibrook. It was his third of the season.
That came after a Tommy Armstrong touchdown brought the Huskers within a field goal.
Gerry returned it past midfield to set up Nebraska with a chance to take the lead, but the offense went three-and-out on the ensuing possession.
Follow the Husker Game Day page for live updates from the Huskers' battle with Wisconsin.