You are completely out of the running for biglaw. Most of the midlaw firms in your area are not interested in you.
For once in my life I am going to un-crush a dream*, at least partially. Take note - this may never happen again.
*Assuming that OP's dreams include BigLaw. If not, then feel free to disregard.
FJ is right, as usual, but I will add some detail with a caveat on the quoted part of his post.
Yes, bad first-semester grades make it harder. Much harder. This is mostly because of the disproportional impact of those first-semester grades: interview decisions for the 2L fall interviews are made either entirely on the first-semester grades, or at best on the full first-year grades. So without good first-semester grades it is hard to get a good interview, and hard to get a good 2L summer job, which makes it hard to get a BigLaw job after graduation.
BUT - while that is the standard path to a BigLaw job, and the easiest, it is not the only path. Plenty of firms hire in the "3L Market" as well, and if your bad grades are isolated to the first semester, then your GPA/class rank should be within criteria, and you will be in pretty good shape. Heck, you might be better off than many. Most students available in the 3L Market are people who did not get job offers from their 2L internships, and they are sometimes viewed as "damaged goods." You won't have this problem, since your 2L internship won't have been with a BigLaw firm.
Believe it or not, many BigLaw firms also hire folks based on resumes in the mail. The right letter at the right time will work wonders.
Lawyers aren't stupid - even BigLaw lawyers. If you can get past the set criteria, to the point where you can tell your story, we will listen. We all went to law school, and many of us (myself included) found that first semester a major obstacle as well. If you can show that you did figure it out, and convince us that you are smart, diligent, and dedicated, we will be interested.