The twists and turns are what make NFL Sundays so unpredictably great, and the Panthers' comeback win in Philadelphia is the perfect example. A 17-0 fourth-quarter deficit turned into an unforgettable 21-17 victory over the defending champs.

The tweets from fans every step of the way tell the story of how it all went down.

Carolina advanced the ball to the Philly 21-yard line and was in position to at least cut the score to 10-3. But consecutive false start penalties led head coach Ron Rivera to punt from the 31-yard line, and the Panthers trailed 10-0 at halftime.

Again the Panthers were in position to make it a one-score game, with second-and-3 at the Philly 26, but a big loss and an intentional grounding penalty forced the punt team out again.

Wide receiver Curtis Samuel started the rally with a 14-yard touchdown run early in the fourth quarter, but it still looked bleak. Then Cam Newton connected with Devin Funchess for an 18-yard touchdown and Jarius Wright added the two-point conversion. Suddenly it was a three-point game.

Torrey Smith's 35-yard catch and run on fourth-and-10 had everyone on the edge of their seats, though they were likely standing in all honesty. A few plays later, Greg Olsen hauled in a 1-yard touchdown reception to put Carolina ahead.

Never a doubt, right? Never a doubt.