The film is set in a post-apocalyptic world in which civilisation has crumbled. A massive electromagnetic pulse has killed all children on the planet with the exception of Molly (Billie Rutherford), the daughter of Jake Slater (Jake Ryan).
When an office worker calls the IT department to solve a computer issue, confusion leads to Pennywise showing up when hearing a call for "It," and things don't make much more sense when information technology finally arrives.