In the beginning Phineas Gage and the other railroad people were working and Phineas was pushing down the sand in the hole and he got distracted when two others were about too fight.
In the middle Phineas had got distracted like I said in the beginning and he had pushed the iron rod into the hole.
In the end, Phineas was looking the other way and the iron rod flew through his cheek bone and behind his left eye through his skull. He was up talking but in a lot of pain and everyone was carrying him to the house where the doctor could come help him. Phineas wasn't himself anymore he had changed.