Will my food continue to cook on the warm setting? I want to start a meal in my crock pot and the recipe only calls for about 4 hours of cooking. However, no one will be home for another 3 hours to turn it off, but it will shut down and go to the warm setting. Once it sets itself to warm, will it still be cooking? I don't want the chicken to be overcooked.
It's still going to be heated, so yes it's going to carry on cooking.

However, the temperature on the "warm" setting is going to be lower, so it will cook more slowly, and therefore you might be okay.

It's difficult to say for sure, because it depends on what exactly the temperatures involved are.