Rapid Reaction: Cubs 9, Rockies 8

CHICAGO -- The Chicago Cubs beat the Colorado Rockies 9-8 on Monday night on Kris Bryant's walk-off home run. Here's a quick look at the game.

How it happened: Colorado got out to a 4-0 lead after scoring twice in the third and fourth innings off of Cubs starter Kyle Hendricks. Carlos Gonzalez hit a two-run home run in the third while DJ LeMahieu drove home two with a single in the fourth. But the Cubs stormed back for six in the bottom of the fourth inning as they had four singles, a double and two walks with Bryant, Jorge Soler, Chris Denorfia, Starlin Castro and Addison Russell earning the RBIs. The Cubs added one in the sixth on a Nolan Arenado error at third base. Colorado scored four runs in the ninth on home runs from Daniel Descalso and Gonzalez to take a one-run lead, setting the stage for Bryant's dramatic game winner.

What it means: Just when the Cubs were ready to fall even deeper into a hole, they came up with one of their bigger innings of the season on top of Bryant's ninth-inning fireworks. It was like the entire group broke out of their slump all at once. It's just one game, but after putting up five runs on Sunday maybe the Cubs' offense has returned.

Big inning: The six runs in the fourth were the second most scored in an inning this season -- the previous high of seven came against position players on the mound in Cleveland. The inning had that feeling of one hitter passing it off to the next with the leadoff walks setting the table. Who knows? Maybe we'll look back at the fourth inning as the one that started to change the Cubs' fortunes on offense for the better.

Beeler starts: Barring a trade in the next 24 hours, Dallas Beeler will start Tuesday night's game against the Rockies after being called up from Triple-A Iowa.

"I thought he had one really good outing and the one in Cincinnati was a little more rugged," Cubs manager Joe Maddon said Monday afternoon. "He pitched well here the last time he was here so I'm fine with it."

What's next: Beeler (0-0, 6.43) faces Yohan Flande (0-0, 4.24) in Game 2 of the series on Tuesday night.