Zach Evancho scored the only goal of the game to lead the Black Knights and force a third and deciding game on Sunday.
With the game scoreless in the first period, Evancho scored the winner on a power play with assists from Dominic Franco and Tyler Pham at 8:29.
Cole Bruns turned aside 33 Air Force shots to get the shutout. The Falcons outshot Army, 33-18. Air Force was blanked on all six power play attempts, while Army went 1-for-2.
