1.   Part of the work involves covering radioactive plutonium pits with a shell of high explosives.

2.   The FBI calls on Baca to help stop Raven, who is on the loose, terrorizing New Mexico with a plutonium pit and vials of the ebola virus.

3.   The plutonium pits are sealed inside a stainless-steel shell.

4.   The plutonium pit, about the size of a softball, is the trigger that allows modern nuclear weapons to operate properly.