Frances drives to the beach to find a young boy. When she arrives, she's driving fast and lands her car in some deep sand and appears to have her car hung up. A minute later when she returns to her car, it's been relocated 20 feet, out of the sand and easy for her to drive away.
When McGarrett pulls up to Five-O headquarters at the Iolani Palace and is shown walking toward the central staircase, he is wearing what appears to be a light blue suit. When he walks through the door of Five-O a moment later, however, his suit is tan or light brown.
During the final confrontation in the junkyard, Moki climbs into a blue sports car behind the sniper and tosses something at him. But between these two events a shot is inserted of the sniper beside a white car, but the blue sports car behind him is gone, replaced by a green Volkswagen and Moki is nowhere to be seen.
At the end Moki is still wearing the same ragged clothing. When he was brought to the youth home after his release from custody, it seems odd that he was not given a set of clean clothes to wear.
The victim is shot, the witness spills his milk and steps in it while running away, Five-O gets the call about the murder, travels to the boat where the victim is, talks to the Captain, goes back to headquarters, calculates where the bullet was fired from, and travels to the tower. During all that time, the hot Hawaii sunshine was beating down on the footprint. However, when McGarrett arrives at the tower, he finds that the footprint is still moist.
The way Moki is identified from his footprint by the HPD computer is somewhat implausible.
When Dano, Hubbard and McGarrett are talking in the office and McGarrett says the securities can be had at 25% of the price, Dano says it would be a 75% profit if they are then sold at market value. It would actually be a 300% profit.