Rembrandt mentions there's 12 hours remaining on the timer. Later, Quinn's timer is shown in a cave with 54 hours remaining. The timer is activated later that night.
Rickman's vortex is circular, as opposed to the jagged oval shape it has in The Exodus: Part 2 (1997). This is because the vortex footage from Slide Like an Egyptian (1997) was reused and tinted red.
Rembrandt approaches Wade with the news that Quinn and Maggie are missing in the fog. In the background, Bunt is visibly awaiting his cue to enter the scene. His hat peeks out from behind the trees.