What happens if I don’t pass?

I’m a crim major, and I was wondering what happens if I don’t pass my second sem course that’s mandatory? I got a 30% on my first midterm for crim history and I have another midterm and a final that I don’t think I’ll pass. My first semester I got a B+ average. So yeah if I don’t pass this year how screwed am I? (I’m in first year btw)