As Vaughn is trying to gain entry to where the C-4 is located he freezes and smashes the top middle bolt and the top left bolt first and works his way down. Then the camera switches to Sydney doing the same thing at the other C4 location and then the camera goes back to Vaughn and he is freezing and smashing the top middle and top left bolt all over again.
At the first C-4 site, Sydney is shown unscrewing the top left bolt, a bolt she had already frozen and broken off.
(at around 1 minute) There is a scene with a ship yard, which Will Tippin is investigating. This shot of the shipyard was not actually filmed for Alias. It is in-fact a shot from Lethal Weapon 2 (1989). If you look carefully, this can be explained by the Name and Location of the ship; The Alba Varden, out of Hamburg and the 2 figures standing by the shipping container to the right of the ship. Look towards the end of Lethal Weapon 2 and you'll notice the exact same shot.
While Sydney is taking down one of the terrorists we can see that Cole can hear her beating him up, but as there were only two of them in the room there was no one who could hold down the button to transmit.