Do I have a leg to stand on or should I just forget it after I was just fired from my job?

I moved here from 50 miles away to take a position as general manager of a new business. This is a car dealership family owned, several local stores. I started after moving here last October 25th. I had almost no communication with the owner from the day I started except by once in a while via text. After starting, and not having any communication, texted about when we could meet so I could get a lot of questions answered about the job, contacts, etc. A couple times, I caught him in passing and he said he had not forgotten me and we would meet soon. Well it never happened. I struggled along best I could get little help from others there. Also, I’m working 60 hours a week with 1 day off a week and a few hours off here and there. I came in on a Monday morning and there was the owner with a witness. He said that he was letting me go because "they decided to go different direction". He stated also that they found 4 cars with dead batteries and cars have not been started in 3 weeks. I had idea on who to contact to get anything done. I did have 2 others cars that wouldn’t start and it took 3 weeks for anyone to respond. Business was very slow, little advertising. I received no warnings of any kind written or verbal at any time. I was discharged on February 13. Is this treatment legal?