Synopsis

Four waves of increasingly deadly attacks have left most of Earth in ruin. Against a backdrop of fear and distrust, Cassie is on the run, desperately trying to save her younger brother. As she prepares for the inevitable and lethal fifth wave, Cassie teams up with a young man who may become her final hope - if she can only trust him.

Four waves of increasingly deadly attacks have left most of Earth in ruin. Against a backdrop of fear and distrust, Cassie is on the run, desperately trying to save her younger brother. As she prepares for the inevitable and lethal fifth wave, Cassie teams up with a young man who may become her final hope - if she can only trust him.