I'm looking for a 80's movie title. It involved a grandpa who delivers weapons for the military or government in an awesome semi truck with his grandson. They build a truck that has bulletproof glass, flamethrowers and all sorts of gadgets like that. They are trying to run from people that want to hijack them for the weapons there carrying in the trailer. Towards they end they end up in a yellow pickup truck with nitrous or something.

That sounds spectacular. Cheezy 80s movies are great... someone help him out so I can find it, too.

I think that Thunder Run is the movie you are talking about. I have been looking for this forever as well and just found it today!

I think that Thunder Run is the movie you are talking about. I have been looking for this forever as well and just found it today!

I think it was released in 1986 and has Forest Tucker in it. (Thunder Run)