Missing 1 W-2, company and IRS not answering my calls. Can I still file?

I had 4 different jobs, one of them, I did not receive a w-2 and they left me on hold for an hour to just hang up on me. I called twice. Same with IRS, they just said they is no agents helping with that question anymore and hang up on me too. I have my 3 other job's w2, can I still file?