The Nightlock Berries Standoff

At the end of the 74th Hunger Games, the Gamemakers withdraw the rule that would have let two tributes from the same district win together, leaving Katniss and Peeta to fight each other. Katniss suggests they eat poisonous berries known as nightlock instead. Realising they intend to die together and leave the Games without a victor, the Gamemakers declare both of them winners.