What to say about Mockingjay? Mockingjay was completely different then the other two, but just as fantastic.
In Mockingjay you learn what was truly going on in Catching Fire and how it was all set in motion by the Head Gamemaker to stage a rebellion by the people of District 13, the long assumed dead district. District 12 has been destroyed, Katniss and her family and friends, including Gale, are now living underground in 13 with Finnick, Beetee and a whole new cast of characters. Peeta is a prisoner of the Capitol and President Snow and Katniss's world is completely upside down. Her emotions are all over the place. She feels guilty for what she has put people through, she feels hatred for what Snow has put her and everyone else through, angry at what the people of 13 expect her to do(including her mentor Haymitch) and she feels complete agony over the fact that Peeta isn't there with her through anything.
Slowly she begins to gain her strength and make the decisions that set her apart from everyone else in the other two books and the strong Katniss we all know and adore arrives. but she arrives not without consequences. Her life is even more peril then it was in the other parts of the story and it is from two opposing forces: one that will stab you in the front and one that will stab you in the back. And while all this is going on, Peeta now seems to hate her since Snow turned him on the one thing he said he would always love.
There are so many twists and turns you have no idea who to trust and what side is the side you should be rooting for to conquer all.
In the end Mockingjay will rip your heart out into tiny pieces and leave you in tears at parts. The things that Katniss has to survive yet again are just unbearable. The change of her best friend, the loss of the Peeta she has come to rely on, the death of Prim, her world completely changing for her. And through all that she comes out on top. She may be a little more broken then when the series started, but like she was once told, they had all been changed forever.
The Hunger Games series is one of the best I have ever read. Everyone needs to pick these books up.