In the film, Diaz plays a seemingly innocent civilian who gets caught up in the affairs of a spy (Cruise) who may or may be not be completely crazy. The official synopsis of the film reads:
An action-comedy centered on a fugitive couple (Cruise and Diaz) on a glamorous and sometimes deadly adventure where nothing and no one – even themselves – are what they seem. Amid shifting alliances and unexpected betrayals, they race across the globe, with their survival ultimately hinging on the battle of truth vs. trust.
In addition to Cruise and Diaz, the cast is rounded out by Peter Sarsgaard, Viola Davis, Paul Dano, Maggie Grace and Marc Blucas. Knight And Day will hit theaters on June 25th.