Possible Sub Plots

1) Conflict between Eddie and Celine (father and daughter)

2) Celine resents Eddie for chasing her mother away. However, because Eddie has a more stable job, custody of Celine was given to Eddie and Celine hates him for that. After all, the both father and daughter were already estranged when the family was still together. Now, the relationship is even more strained.

3) Conflict between mentor and Eddie.

4) Plot change. Father and daughter didn't shift to Skyline City. They were already living in it, even when the family was still intact. Fact that parents divorced and Eddie got custody of Celine remains, but now, wife (give a name) is still in Skyline City as well. She visits Celine every weekend.

With the progression of the story, wife gets kidnapped too.

Note: Save wife and daughter = Saving the family?