Denny’s is running a special offering all you can eat pancakes and french fries with the purchase of a meal $2.50 or more containing at least one of the two items. If that sounds confusing, you have to buy a meal for $2.50 or more, and your meal has to include pancakes and/or french fries.
I can’t link you directly to the deal on their site because it’s Flash, but it’s #5 on their Flash intro.