The Extremis Galaxy

Stuck in the most violent galaxy after an accident separated him from the rest of his family, a father arms himself to protect his youngest child.
Now he takes on alien threats and intergalactic criminals.
Will he survive long enough to rejoin the rest of his family or will this galaxy claim another life?

(Small disclaimer)
I'm writing this story for my dad. A lot of my interests and hobbies come from him and our love of movies and video games. A lot of my stories have characters who have deceased or missing parents. I decided that for once, my dad should be the hero I see him as.
Which leads us to this story which will have tons of cameos and aliens from popular media.