(WARNING story discussed in explicit detail--though how comprehensible details may be is a matter of debate, with both discussion and debate an exercise in futility)
The episode's putative title-- "Got a light?" sounds odd on first reading (online you see it under the episode's thumbnail pic) gains significance later on.
Starts off plottily enough: Evil Mr. C (Kyle MacLachlan) and less evil Ray (George Griffith) have blackmailed their way out of prison, shaken away any electronic tracers*, turned off into a small side road (how can Lynch fill interminable shots of cars nosing down dirt roads with such dread?). They confront each other, demanding money demanding information, with C pointing the 'friend' he pulled from the glove compartment (a special request planted there by the prison warden) at Ray.
Only C's gun somehow fails to fire. Only Ray in a clever twist produces his own gun shooting C twice in the gut. Only when C drops the lights start flickering and shadowy figures emerge from the woods, dancing around C's body, pulling apart his belly, smearing his own gore on his face, squeezing out an egg sac larva with BOB visibly floating inside (Ray: "I saw something in Cooper. It might be the key to what this is all about.").