With the nation of Panem in a full scale war, Katniss confronts President Snow in the final showdown. Teamed with a group of her closest friends – including Gale, Finnick, and Peeta – Katniss goes off on a mission with the unit from District 13 as they risk their lives to stage an assassination attempt on President Snow who has become increasingly obsessed with destroying her. The mortal traps, enemies, and moral choices that await Katniss will challenge her more than any arena she faced in The Hunger Games.

Using massive piloted robots to combat the alien threat, earth's survivors take the fight to the invading alien force lurking in the depths of the Pacific Ocean. Nearly defenseless in the face of the relentless enemy, the forces of mankind have no choice but to turn to two unlikely heroes who now stand as earth's final hope against the mounting apocalypse.