In Moscow, two American software designers, Sean and Ben, travel to Russia for a business venture. Upon arrival, they discover their project has been stolen by a duplicitous Swedish rival named Skyler. While dealing with the betrayal, the group attends a nightclub to relieve some stress, where they meet fellow Americans Natalie and Anne. Suddenly, the city experiences a massive blackout, and mysterious, glowing entities begin disintegrating people into ashes. The group soon realizes that they are under attack from invisible, electricity-absorbing aliens, and they must navigate the chaos to find safety.

As the group moves through the eerily quiet and devastated streets of Moscow, they forge plans to locate additional survivors and potential means of fighting back against the invisible threat. They encounter others who have managed to evade the alien onslaught and exchange vital information on how to detect and avoid the deadly entities. Fueled by desperation and survival instincts, they face numerous harrowing challenges and learn that human ingenuity and resilience might be their best weapons in overcoming the relentless extraterrestrial menace.