The British Grand Prix was a fairly routine affair for 49 of its 52 laps, but it exploded into life late on after a series of punctures in the closing laps.
One dramatically altered the complexion of the championship fight, while the fear of another prevented Red Bull from snatching a stunning first win of the year.
Here's a look at why it all unfolded the way it did.
What happened to the tyres?
Nowhere on the Formula One calendar punishes tyres like Silverstone.