In Without Warning, a radical terrorist group has targeted and seized the Peterson-Daniels chemical facility, a vulnerable location that endangers millions of people through the devastating ecological danger it imposes if destroyed.
Pleas are useless and any direct military attack would be too great a risk. As the terrified hostages fear for their lives, their only hope lies with a covert ops team, whose goal is to infiltrate the factory and eliminate the ruthless enemy.
The harrowing events unfold over a 12-hour period, with a unique gameplay dynamic that allows the six central characters to experience events on the same timeline, but from their own distinct perspectives.
The player controls each character individually, with the focus automatically shifting to a new character at key moments that unfold through cut scenes.
By switching between characters, their individual narratives are woven together to create an overall picture of the events that occurred during the crisis. The player will also retrospectively see the events through the eyes of another character and is therefore not only a participant in the events, but also a spectator.
Additionally, actions taken as a character affect the progress of others, and players must successfully use each other's strengths to advance.