Exposition: The novel introduces Katniss as the protagonist and presents the background of Panem, the districts, and the Hunger Games.
Rising Action: Katniss arrives at the Capitol with Haymitch and Peeta for prepping for the Hunger Games. She participates in the tribute training process, interview with Caesar Flickerman, and enter the arena, ready to fight for the death. Over the course of the Game, Katniss learns to trust Peeta and even risks her own life to bring him much needed medicine.
Climax: Peeta and Katniss learn that now only one tribute can leave the arena alive as the winner. Katniss announces to the cameras and Gamemakers that she and Peeta will eat the poisonous nightshade berries together. They both put the berries in their mouths, and at the last minute, Plutarch Heavensbee announces both Katniss and Peeta as winners.
Falling Action: Katniss learns of the Capitol's, particularly President Snow's, displeasure at the outcome of the Games. Snow feels that the stunt with the berries was an an attempt to circumvent the authority of the Capitol, an inflammatory act of rebellion.
Fortunately Katniss and Peeta are able to play up their romance to convince the Capitol that their eating the berries was a purely romantic gesture becauste neither wanted to live without the other.
Resolution: Katniss returns home to District 12 on the train, unsure of her true feelings for Peeta.