Everyone in the state of North Carolina needs to take a deep breath and relax after the incredible scenes from Boone on Saturday.

It's only Sept. 3, but the contest between North Carolina and Appalachian State might already have a stranglehold on game of the season, with the back-and-forth affair producing a combined 124 points and endless late drama.

Here are five crazy things that happened during the Tar Heels' 63-61 road victory.

Both teams blew double-digit leads

From the early returns, it looked as though Appalachian State would cruise to victory against a porous North Carolina defense. The Mountaineers raced out to a 21-7 lead just after the start of the second quarter. The script looked eerily familiar to the Tar Heels, last year's 105th-ranked defense. With Gene Chizik joining as coordinator in the offseason, fans expected different.

However, that Mountaineers edge wouldn't last long. North Carolina ripped off three straight touchdowns, including one to end the first half, to take a 28-21 lead to the locker room. The Tar Heels continued that run in the second half, racing out to a 41-21 lead with just over a quarter to play.

That lead would evaporate in the final frame, though, with Appalachian State producing a 27-7 run to level the score at 49 with four minutes to play.

App State scored 40 points in the 4th quarter … and lost!

Despite entering the fourth quarter with a 20-point lead and scoring an additional 22 points, North Carolina still somehow almost lost the contest. That's how absurd Appalachian State's offense was in the final 15 minutes. The Mountaineers hung 40 on the Tar Heels in that time frame, with the 62 combined points falling just one shy of the FBS record for most in a quarter. Chase Brice threw four touchdowns in the fourth quarter alone, but it wouldn't be enough to send the game to overtime because …