Warcross is Marie Lu's thrilling novel set in a tech-savvy futuristic world where everyone lives their lives immersed in the digital world of Warcross. For Emika Chenn, Warcross is a way of life and a means of survival, as she works as a bounty hunter tracking down individuals who make illegal bets on the games. A glitch that happens as she tries to hack into the game during the opening of the International Warcross Championships catapaults Emika into the national spotlight, gaining her attention from the public, top teams in the championships, and the powerful, elusive, and hunky founder of Warcross, Hideo Tanaka. As Emika trains for the Championships with her new teammates, she is torn between working hard with them, sneaking off on secret dates with Hideo, and looking for the elusive Zero, a hacker who Emika believes may even be trying to kill Hideo. The game's final showdown is full of action and surprises, as Emika learns that no one is to be truly trusted.