I like this episode, but in needs to be said: the actor that plays Andy is a bit too ... fey to play a big, brooding union guy convincingly. And, once you notice - and it is easy - it takes you right out of the story!
Here's another odd thing I just noticed: when McGarrett gets to Andy's house after he and the hot Barbara Luna's son disappears, a cop outside the door SALUTES him! Does that make sense? A police officer saluting Steve?