be (all) out to (do something)
To be working toward some goal or outcome. Ben is all out to get a scholarship—that's why he's been involved in so many extracurriculars this year.
be (all) out to do something
, be (all) out for something
want or plan to do or get something: I think he’s out to kill me.I’m not interested in a few thousand dollars. I’m out for a million!