During the 70th Hunger Games, Annie witnessed her fellow District 4 male tribute's beheading, which drove her to insanity. She has certain problems which included her closing her eyes and covering her ears, laughing when it was unnecessary, and staring into the distance at strange times. She hid for most of the 70th Hunger Games, until an earthquake broke a dam and flooded the entire arena. Having grown up in District 4, Annie survived by being the best swimmer. Since then, she has been perceived as being mentally unstable. Annie was reaped a second time to participate in the 75th Hunger Games, but Mags, an older tribute, who helped Finnick mentor Annie during her Hunger Games, volunteered to enter the Games in her place. Annie was the only love of Finnick Odair, who was the victor of the 65th Hunger Games.
In Mockingjay, we find out that Annie is kidnapped by the Capitol and will be tortured. This is an effort by the Capitol to scare Finnick and force information from Annie which she doesn't have; intel on the rebels. A group of rebels break into the Capitol and get her out, taking her safely into District 13. Upon her arrival, Annie is reunited with Finnick and the two embrace. Finnick takes her to receive medical attention. In District 13, she and Finnick become publicly married in the traditional District 4 style. Their wedding cake is decorated by a recovering Peeta. Annie wears one of the dresses that Cinna had made Katniss for the victory tour. Katniss notices that since their marriage, Finnick does not let go of Annie's hand. Annie and Finnick meet Katniss, Gale, Johanna, Beetee, Delly and later a rehabilitating Peeta at lunch. When Johanna tells Peeta that they are familliar with each other's screams, she covers her ears. Katniss figures that Annie is not all that bad, just maybe a little weird. Peeta jokingly tells Finnick to take care of Annie or he will take her away from him. On a mission to infiltrate President Snow's mansion, Finnick dies and leaves Annie a widow. Later, it's revealed that Annie is pregnant with their son.
Before President Snow's planned execution, President Coin gathers the seven surviving victors. She asks if they would like one final Hunger Games using children of the most powerful people in the Capitol. Annie, along with Peeta and Beetee, votes no. At the execution, Annie watches Katniss kill President Coin when she is supposed to kill Snow.
Annie returns to her home in District 4, where she gives birth to her and Finnick's son.
Annie was married to, then widowed by Finnick Odair, and they have one son together. She has no other known family.
The two have a deep love for each other. Finnick mentored Annie and most likely did everything to keep her alive. During the interview with Caesar Flickerman, Finnick recited a poem for his one true love that was Annie. During The Third Quarter Quell, Finnick heard Annie's screams during the jabberjay attack because she was who he cared about above all others. Finnick became worried thinking they had hurt Annie. In Mockingjay Finnick constantly worried about Annie and could not concentrate on anything else but her. Finnick thought about her and was out of his mind because Annie had been captured by the Capitol so they could torture her for information about the rebels. Finnick would tie knots so was able to distract himself. Finnick broke down when he couldn't handle it anymore, soon after the rebels rescued the prisoners from the Capitol. Finnick and Annie reunite and later the two get married and have a son, but Finnick dies before he can meet him.
Annie is described as a lovely young woman with dark flowing hair and sea green eyes. Katniss describes her as 'lovely if somewhat bedraggled' in Mockingjay.
- Interestingly, the two people she had a close partnership to, Finnick and her District partner, were both decapitated.
- She and Enobaria are the only Career tributes alive after Mockingjay.