When the scene challenge tension clock or progress track is filled, or when events lead to the scene’s conclusion, roll the challenge dice and compare to your progress.
On a strong hit, you achieve your objective unconditionally.
On a weak hit, you succeed, but not without cost. You must Pay the Price. Make this a minor cost relative to the scope of the scene.
On a miss, you fail or are undermined by a dire and costly turn of events. Pay the Price.