Errrr, don't literally do what Green4dr suggests (since the "door skin" refers to the steel, outer portion of the door). You may not even have to take off the (inner!!!) door panel - just remove the inside door handle (three screws) and gently pull it out and see if there is still a rod connected to the handle. If not, see if there's still a plastic thingamajig that lives in the hole the rod goes through - it should have a hole for the rod where it makes a 90 degree turn, and a "guide" to hold it in place just below that. If the plastic bit is broken (most commonly, the "guide" will snap off) then go to the dealer or junkyard and get some more. In a pinch, I've used some silicon tubing (that barely slides over the rod, and then barely fits through the hole in the handle mechanism). Saved me a trip, and let me put my door back together after painting the Jeep. FYI, the same clips are used on the door lock mechanism, so you can see what a good one looks like.
If the rod DOES still connect to your door handle mechanism, it's popped off the other end, and you will have to pull your interior (!) door panel off. It uses the same plastic clip, and is a little fiddly to hook up, but it's a pretty simple system.