In the sequel to Pulse, a widowed father struggling with the loss of his wife and daughter is tormented by a ghostly presence that is connected to the internet. As he descends into madness, he must confront his own demons and uncover the sinister truth behind the supernatural phenomenon.

After discovering a mysterious website, a hacker unleashes a supernatural force that spreads through a network of computers, driving people to commit mass suicide.

In Pulse 3, the world has been devastated by a nuclear explosion caused by an electro-magnetic pulse. A group of survivors must navigate through dangerous situations including encounters with supernatural entities and other individuals who have been transformed by the pulse. As they struggle to stay alive, they uncover the true nature of the pulse and its connection to a mysterious girl. Will they be able to find a way to escape the horrors of the post-apocalyptic world?