After nearly two scoreless periods, the Kings' Robyn Regehr and Trevor Lewis took penalties in the final minute of regulation. That set up 1:19 of a 5-on-3 power play for the Sharks in overtime. After a few missed chances, Couture pounced on a loose puck and roofed it top shelf for the game-winner.
Los Angeles still leads the series 2-1, but San Jose has seized momentum for the time being.
Here's a look back at our three questions:
Will the Sharks continue their dominance at home?
If you expected the Shark Tank to turn into a neutral rink when two Californian playoff teams came to play, you were mistaken. The Tank was decidedly pro-San Jose, especially as the game wore on. The way these two teams play on home ice makes you wonder whether this series will go seven.
Can the Sharks stay out of the penalty box at key moments?
It was interesting seeing how the script flipped in Game 3, with the Kings getting sent to the box at terrible times. Jonathan Quick was up to the task, but even he couldn't plug the hole the Kings made for themselves by taking two penalties in the dying seconds of regulation.
Will the Kings tighten up even further?
Someone on Twitter said this series was exactly like the Kings-Blues series but with "45% less sandpaper." In other words, the grinding board-battles have given way to more open hockey, but the quality scoring chances are nonexistent. That was the case in Game 3.