It's Week 4 of the 2013 NFL season, and this year's contenders and pretenders are taking shape.
Last year's worst team, the Kansas City Chiefs, are one of this year's best, sitting pretty at 4-0 after dismantling the New York Giants.
Those Giants are now 0-4 and look more like the Jacksonville Jaguars than a team that won the Super Bowl only two years ago.
As Sunday's in the NFL always are, Week 4 was chock-full of big performances and highlight-reel plays.
Here's a look at some of the biggest.
Look Everyone, It's Greg Jennings!
The Minnesota Vikings signed Greg Jennings to a lucrative free-agent contract in the offseason, but to this point in the season, the Vikings had received next to no return on that investment.
That all changed with the insertion of Matt Cassel at quarterback for the Vikings in Week 4.
Jennings was one of the stars of Minnesota's first win of the season in London, reeling in three catches (including this 70-yarder) for 92 yards and a pair of touchdowns against the Pittsburgh Steelers.
He Doesn't Look Hurt to Me
One of Week 4's biggest games was in the NFC North, where the Chicago Bears traveled to Detroit to battle the Lions for division supremacy.
After missing Week 3 with a dinged-up knee, running back Reggie Bush was back on the field Sunday for the Lions.
He looks fine now.
Bush was a big part of the Lions laying 40 points on the Chicago defense. Bush racked up 173 total yards in the victory, including this 37-yard scamper for six.
All Day, Man. All Day
It's back across the Pond for this next highlight, with a player who is certainly no stranger to the highlight reel.
Minnesota running back Adrian Peterson was his usual ho-hum, mediocre self in the win over the Steelers on Sunday.
Twenty-three carries for 140 yards and two touchdowns, including this 60-yarder.
A Wild One in Houston
For 30 minutes Sunday, it looked like the Houston Texans were going to take out the frustrations of last week's blowout loss to the Baltimore Ravens on the visiting Seattle Seahawks.
The Texans led Seattle 20-3, but the Seahawks hung around. A late pick-six by Seattle cornerback Richard Sherman brought the Seahawks within three, a Steven Hauschka field goal tied it and the Seahawks prevailed 23-20 in overtime.
A crushing loss for Houston, and for the first time in franchise history, the Seattle Seahawks are 4-0.
Tanking? Who's Tanking?
After trading running back Trent Richardson to the Indianapolis Colts, many pundits theorized that the Cleveland Browns were effectively throwing in the towel on the 2013 campaign.
Someone forgot to tell the Browns.
For a second straight game, Cleveland quarterback Brian Hoyer was sharp, and after downing the Cincinnati Bengals 17-6, the Browns are one of three teams tied for first place in the AFC North at 2-2.
Yes, you read that right.
Um, the Black Helmets Are Your Guys, Joe
This one is only a highlight if you're a fan of the Buffalo Bills.
Just one week after looking horrible against the New York Jets, the Buffalo secondary picked off Baltimore Ravens quarterback Joe Flacco five times in Week 4.
The result? A 23-20 win that leaves both teams at 2-2 and a bad taste in the mouths of the defending Super Bowl champions.
Washington Gets a W
The Washington Redskins won their last seven games in 2012 en route to a NFC East title. So far this year, however, the Redskins sat at 0-3 entering Sunday's action and in desperate need of a victory.
The Redskins got that victory, thanks in part to a solid showing from a Washington defense that had been atrocious in 2013.
The Redskins notched seven sacks, and the defense found the end zone on this 45-yard interception return by David Amerson.
At this rat, the other 31 NFL teams are going to petition commissioner Roger Goodell to ban Peyton Manning from the NFL in the interests of competitive balance.
Manning has owned the NFL so far this year, and Week 4 was no different. Manning threw for 327 yards and four scores, as the Broncos hung a franchise-record 52 points on the Philadelphia Eagles to move to 4-0 on the season.
In September, Manning threw 16 touchdown passes...and no interceptions.
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