For me, the artistic peak of Five-O was "Nine Dragons" and from that point on it was a downhill escalator ride that got steeper and steeper. You really couldn't use Wo Fat again as a viable villain once you have him engage in the high stakes of "Nine Dragons" because anything else, especially his caper in the last episode, seems like such a comedown (saving that for the last episode is the one saving grace). No more scripts from Jerome Coopersmith didn't help. Plus, the show just never seemed to fit in with the ambience of late 70s TV.

That said, it would have been nice to have seen Danno in the last episode so that maybe the final tag wouldn't have been that ridiculous one of Wo Fat in a ludicrously dated prison uniform, but instead Steve and Danno sharing some congratulations over finally nabbing him.