At the end of the show it was vital that everyone be in their place for the missile launch at 2:00 PM. When Danny arrives at the control room with Dr. Vogler, the time on his wristwatch (1:44 PM) is shown on a close-up. The next shot is of the clock on the wall with the time as 12:44. A few moments later the wall clock is shown again with the incorrect time. Finally, when the 2:00 PM deadline has almost arrived, the clock on the wall finally shows the correct time.
Swiss police would not allow a foreigner, even a police officer, run around armed. They would do the work needed to do themselves.
When McGarrett car is flipped over by the tow truck, it can be seen that the car's engine is missing.
When Jonathan Kaye receives the phone call that Misha the Bear is in the complex, he asks Steve whether or not he knows him. Misha was a pivotal character in the earlier episode "FOB Honolulu", where Wo Fat was trying to steal the bogus 20 dollar plates. Jonathan should have known that.