They were 3-8-1.
They haven't lost a regular-season game since, giving them a string of 15 consecutive wins, the longest active streak in the NFL. They are 11-0 heading into Sunday's game at New Orleans, where a victory would allow them to clinch a third straight NFC South title.
The winning streak began last season with a 41-10 victory at New Orleans.
Here's a highlight from each of those wins:
1. Panthers 41, Saints 10 (Dec. 7, 2014): A brawl broke out in the first quarter when Saints linebacker Curtis Lofton pushed Cam Newton during the quarterback's 2-yard "Superman" celebration. Newton chalked it up to "a lot of testosterone on that field at one time."
2. Panthers 19, Buccaneers 17 (Dec. 14, 2014): The win wasn't pretty, but with Newton out after suffering broken bones in his back during a midweek car accident, it kept the 5-8-1 Panthers within a half-game of New Orleans in the NFC South. "It's pretty crazy," tight end Greg Olsen said of being in contention. "But we're not going to apologize for it."
3. Panthers 17, Browns 13 (Dec. 21, 2014): Newton returned less than two weeks after the car accident to rush for a touchdown and throw for one. "The guy's a warrior," left tackle Byron Bell said. Coupled with a New Orleans loss, that win moved the Panthers into first place in the division.
4. Panthers 34, Falcons 3 (Dec. 28, 2014): Roman Harper and Tre Boston returned interceptions for touchdowns. The defense also had six sacks as Carolina became the first team to win consecutive NFC South titles. "The beautiful thing -- record doesn't matter," coach Ron Rivera said.
5. Panthers 20, Jaguars 9 (Sept. 13, 2015): Cornerback Josh Norman introduced the football world to his imaginary horse named Delta with a 30-yard interception returned for a touchdown in the third quarter. "I wanted to give the defense some energy to get going," Norman said.
6. Panthers 24, Texans 17 (Sept. 20, 2015): This one will be remembered for Newton's 2-yard, third-quarter flip into the end zone. "My heart was in my socks," Newton said of what he was thinking when his 6-foot-5, 260-pound body was airborne.
7. Panthers 27, Saints 22 (Sept. 27, 2015): Norman stole the show again with his spectacular interception in the end zone with 1:09 remaining. His body was almost parallel to the ground. "I tried to target the ball, and God gave me wings to fly," Norman said.
8. Panthers 37, Buccaneers 23 (Oct. 4, 2015): Tight end Ed Dickson caught a fumble by running back Jonathan Stewart in mid-stride and rambled 57 yards for a touchdown. "In my 10-plus years of football, I don't think I scored on a weirder touchdown," Dickson said.
9. Panthers 27, Seahawks 23 (Oct. 18, 2015): Newton completed a 26-yard touchdown pass to Olsen with 32 seconds left to end a four-game streak of losses to the two-time defending NFC champions. "This was one of the bigger victories we've had since I've been here," Rivera said.
10. Panthers 27, Eagles 16 (Oct. 25, 2015): Newton ran for a touchdown and passed for at least one touchdown for the fourth time this season in front of a national Sunday night audience. But it was fullback Mike Tolbert's 2-yard touchdown catch on which he broke four tackles that was the big highlight in this one. "Resilience," Norman said of Tolbert. "The dude has a motor, like he don't stop."
12. Panthers 37, Packers 29 (Nov. 8, 2015): This one will be remembered for Newton ripping down a Green Bay banner -- in Carolina's stadium -- before the game as much as it will be his 297 yards passing. Said Newton: "It's something I felt was my due diligence to protect."
13. Panthers 27, Titans 10 (Nov. 15, 2015): Newton completed his first 11 passes, but this one became all about the "dab." The quarterback introduced the NFL to the Atlanta-based dance after a second-half touchdown run. Newton later said the dance took him to his "happy place."
14. Panthers 44, Redskins 16 (Nov. 22, 2015): Newton threw a career-best five touchdown passes to five receivers. And you thought he was a running quarterback. "I've labeled myself as a pocket passer with the ability to run," Newton said.
15. Panthers 33, Cowboys 14 (Nov. 26, 2015): Newton went from dabbin' to twisting as he celebrated a Thanksgiving Day touchdown, but this one was all about linebacker Luke Kuechly and the defense. Kuechly had two interceptions, one returned for a touchdown. "Defense went out there and brought their A-game and made our job a lot easier," Newton said.