When Mary is in the trunk of the kidnappers' car she kicks out a tail light and the car is a Dodge Intrepid. Later, when Steve is tracking the car by helicopter, the car has changed to a 2005 Dodge Charger
When Steve and Danny are at Mamo's and the two guys appear and start shooting, one of them pushes over a man in a green shirt, but in the next shot he isn't on the floor but is moving away on his hands and knees.
When McGarrett is seen reading the "Dancing Men" story, the book is entitled "The Adventures of Sherlock Holmes". In fact, the story appears in a later volume entitled "The Return of Sherlock Holmes".
When speaking of Hiro Noshimura, McGarrett says that he is 'oyuban' (boss). The correct term is 'oyabun'.