Primer is set in the industrial park/suburban tract-home fringes of an unnamed contemporary city where two young engineers, Abe and Aaron, are members of a small group of men who work by day for a large corporation while conducting extracurricular experiments on their own time in a garage. While tweaking their current project, a device that reduces the apparent mass of any object placed inside it by blocking gravitational pull, they accidentally discover that it has some highly unexpected capabilities - ones that could enable them to do and to have seemingly anything they want. Taking advantage of this unique opportunity is the first challenge they face. Dealing with the consequences is the next.