coolant plug

I plan to flush and refill my cooling system with new Dexcool and distilled water. the problem is how to take out or remove the drain plug because it looks like it has wings and a 3/4 hex head made of plastic. here is a photo I took of it today. any help will be appreciated.

I have a 2003 lesabre custom . I want to drain and refill the radiator however I have not seen a good video or photo with an explanation on how to turn or fully pull out the plug on this model . I dont even know if these photos I have obtained from parts pages are the correct photos of...