Truck wont crank.

What is your question?

I was driving my truck today and it was running great, made two stops, it started fine, not a problem and then I made a turn on a road to go home and it started skipping really bad, lost power, would not go when I pressed the gas pedal. I pulled it over on the side of the road, tried to give it gas and it ran rough a few minutes and quit. I tried to restart it, it would crank but ran rough and didnt have much power and it quit again. Then it wouldnt crank at all. I got a tow home and now it just turns but wont fire. Any ideas??? PLease help!