In the future, twins Mika and Ellie live behind The  Wall, a concrete barrier made to protect humans from  animals that have gone crazy with plague. Then Ellie goes  missing, and Mika is the only one who believes she’s still  alive. Mika can feel Ellie’s presence through a futuristic  arcade game released by the government, and the farther  he gets in the game, the more he realizes their entire world  is built on a foundation of lies.