CHICAGO — The Chicago Bears desperately needed a spark, and it figured that Devin Hester would be the one to deliver.

Sure, Robbie Gould kicked a 39-yard field goal in overtime and the defending NFC champions gave their flickering playoff hopes a boost with a 37-34 victory over the Denver Broncos on Sunday.

True, Bernard Berrian made a spectacular touchdown catch at the end of regulation. But Hester's two touchdown returns in the second half woke up a team that seemed to be asleep on the field.

That's why Denver's Dre Bly said, "I feel like we single-handedly got beat by one guy."

Of course, there was more to it than Hester.

After scoring two touchdowns in the final 5:17 of regulation, the Bears (5-6) won the coin toss to start overtime. They drove from their 24 to the Denver 18, where Rex Grossman took a knee. Gould then came in and delivered the game-winner, 3:41 into OT, bringing a dramatic game to a finish.

Denver (5-6) was up 34-20 early in the fourth quarter after an acrobatic 14-yard touchdown catch by Tony Scheffler, but the Bears weren't finished.

Charles Tillman blocked a punt and Brandon McGowan recovered, giving Chicago the ball on the Broncos' 18. That led to a 4-yard touchdown run by Adrian Peterson, who was pushed in by his teammates in a scrum.

More drama followed.

With their playoff hopes perhaps hanging by a thread, the Bears tied it with 28 seconds left in regulation on a 3-yard catch by Bernard Berrian that figures to show up on highlight reels. Berrian spun away from Champ Bailey and lunged to catch the pass from Grossman on the right side of the end zone, his right foot dragging as his left knee hit the ground in bounds. The play was reviewed and the call on the field upheld.

The TD capped a 65-yard drive that Denver's Dre Bly kept alive with an illegal contact on fourth down at the Chicago 36. Grossman connected with Rashied Davis and Muhsin Muhammad for 21 and 13-yard completions that helped set up the touchdown.

"Studying film, we knew he would kind of bite on the initial move, the first move and going back to the corner of the end zone I just think where he was at the way he bit, Rex couldn't really get it over his shoulder," Berrian said. "And I think he would have made a play on it. So Rex threw a back shoulder ball and just allowed me to make a play on it."

The Bears managed to stay in the game despite inopportune penalties, a few breakdowns on defense and the loss of another key player to an injury — Cedric Benson.

They can thank Hester they were still in it. He returned five punts for 81 yards and five kickoffs for 151.