Rick Yancey's The 5th Wave debuted in 2013 and was definitely my favorite YA book of the year. 16-year-old Cassie Sullivan is trying to survive after an alien invasion as devastated Earth with five waves of destruction. Called the Others, the aliens have left very few humans alive. Besides Cassie and her little brother, Ben Parish, high school football star is also alive and remains someone Cassie is romantically interested in. But like any good YA novel, Cassie meets Evan Walker who rescues her after she is shot.
The much anticipated sequel The Infinite Sea was released in September 2014 and delivered on so many levels. I'll wait until that film adaptation before I discuss that one so as not to create spoilers. The final book in the trilogy, The Last Star, will be released on May 24, 2016.
Sony Pictures purchased the film rights to trilogy and will star Chloe Grace Moretz who starred in another YA phenomenon If I Stay. The film will be released in 2016.
Check out IMDB's page for more information.