There is another screw in plug that i cannot locate right now.

It looks like a black plastic tapered phillips head screw that you slather with sealant bonder and screw into the hole.

Your goal in these repairs is only a temporary repair that will allow you to drive modestly to a good tire repair shop where the tire will be dismounted, inspected and patched from the inside. Good tire repair shops also have a Hunter Computer Balance Center that applies a 800 lb road force load.