Short Stories with Tragic Endings

I have had this dream before
I am on the grounds of some massive building. I am with my best friend. We were doing
something but I don't quite recall. I come up to a small road going up to the building where
a red firetruck is parked. There is also an armored truck, and my friend and I are to make
sure that nothing happens to whatever is inside this truck. Suddenly, another firetruck comes
rushing down the drive and smashes into the back of the armored truck. Two guys get out and
start trying to get at whatever we are protecting and somebody yells "stop them" or something.
We do not have any kind of substantial weaponry we get in the firetruck and the dream ends.
Hopefully I will be able to get something more in-depth as this is a recurring dream.