Cowboys cornerback DaRon Bland had a tough time handling DK Metcalf in the first half, so Dan Quinn started having Stephon Gilmore travel with the Seahawks receiver in the second half.
It led to a Bland interception on Tyler Lockett that set up the Cowboys offense at the Seattle 38. The Cowboys got nothing out of it, though, when CeeDee Lamb dropped a fourth down pass in need of 2 yards.
The Seahawks then marched 70 yards in five plays with Metcalf scoring his third touchdown of the night.
Metcalf has six catches for 134 yards with his touchdowns covering 73, 1 and 3 yards.
Geno Smith is 17-of-26 for 269 yards with three touchdowns and an interception.