In 1995, FBI profiler Jim "Fitz" Fitzgerald joins the Unabom Task Force. Fitz recommends new methods of profiling but finds no allies among the agents in charge. In 1997, Fitz is tasked with confronting Ted Kaczynski, the Unabomber.

When the elusive Unabomber threatens to blow up a jetliner, Fitz must determine if the threat is real. In 1997, Fitz confronts Ted for the first time.