Oklahoma led by three possessions entering the fourth quarter and looked in control.
That's not the case anymore. Air Force engineered two lengthy touchdown drives and has cut the Oklahoma lead to just 27-24 late in the fourth quarter.
Air Force was clearly a much different offense than the wide-open passing attack Florida State brought to Norman last week, but Air Force has moved the ball well, unlike the Seminoles.
Oklahoma has the ball and can seal the game with an extended drive or a score, but any mistake could turn a close call into a loss.