Wont stay running

I can get my car to start but as soon as I touch the gas it dies. What could it be? Could it of jumped time or what? Please help.

There are at least a few possibilities, but getting some helpful suggestions will depend–in part–on identifying the make, model, & model year of your mystery vehicle. Knowing the odometer mileage and its maintenance history over the past 3 years would also be helpful.