It's time that Jack Malone works through his demons.
Yeah, he got his job back but not his life. To heal his life Jack has to figure out how to be there for those who need him. His daughter, who's having problems, is coming to live with him. Samantha is willing to let Jack in for her and her son. She has confidence that Jack will be able to pull this off.
Can he? It seems that he has come to that fork in the road: Change or cut loose. Those who would be cut loose include his daughter, Sam and the infant.