Injury-hit Dundee showed steely determination to claim their first top-flight away win over Falkirk in 39 years thanks to Ashley Hay's last-gasp strike.
Striker Hay, on his first Scottish Premiership start of the season after two months out injured, threatened throughout the match and emerged as the hero in added time.
It means Falkirk drop more late points following their draw at 10-man St Johnstone before the international break.
Despite having eight players missing because of injury, Dundee looked confident and applied pressure to the Falkirk defence.
But the visitors were made to rue missed opportunities when Falkirk's Finley Barbrook arrived to the ball in the Dundee box, Callum Jones was teased into a challenge and referee David Dickinson pointed to the spot.
Jacob Murrell powered the penalty beyond Owen Goodman for the American striker's second Premiership goal of the season.
The goal flipped the momentum, with Falkirk looking much more settled with the lead.
Dundee rallied, however, and the leveller arrived when Drey Wright recycled a corner and Owen Bevan fired a close-range header into the net.
Steven Pressley's fourth-place side continued to drive forward and in the 91st minute Hay pounced to leave the travelling support ecstatic.