Originally Posted by ngdawg

According to dream interpretation, the bullets coming at you represent anger and/or aggression either aimed at you or you're feeling it from within.
Since the aggressor is holding a hostage, it's safe to assume that the aggression/anger is holding back something in you that's struggling to be free.(powerlessness) This is further represented by you thinking you're hiding safely only to come face to face again with the aggressor.
No one has called for help because only you see the "attack".

Dreams are puzzle solvers of the things we are perplexed or stumped by during our waking hours. They bring our issues to the forefront, albeit in symbolic form, so that we can deal with them. Once we figure out the symbolism, mixed with the residual feelings upon waking, we can then deal with whatever was shown to us while we slept.