How this "finale" rates above zero is beyond me. There was nothing believable about this show a any moment. Having the Peterson character show up was the signal that this was a joke episode. The plot involves a series of bombs, a case uncovered by a series of brilliant "deductions" that are just impossible...including bees that scout a distant mountain range. The last year or so this show has been just absurd. The acting is terrible, the stories absurd, everything seems so aged, decrepit and foolish. I cannot describe this show as there is nothing there. An empty plot, bored, worn out actors and it was just nonsense. Good riddance at last.