I had never heard of this series when it was recommended to me, so I wasn't sure what to expect. It focuses on Mary, a tough talking US Marshall responsible for people in the Witness Protection Programme. Each episode deals with a different criminal or witness and the complications that arise from being in the programme. However, there is also the long-running storyline of Mary and her partner, Mary and her on/off baseball playing boyfriend and Mary and her flighty mother and sister. Mary and her family also have some backstory relating to her father who has been missing for most of her life and is wanted by the FBI.
The pilot episode and the follow up were a little dreary, I found, and I was a little disappointed. However, after that it really picks up and I started to be much more interested in what was going on. The relationships between the characters became clearer, rather than foggy mess that they seemed at first. The longer running storylines are more compelling than the "new each week" ones and that's what holds the interest. The acting is pretty good but there is still some work to do. Mary's sister, in particular, can be a little one-dimensional, so I hope that will improve in further seasons. I think it could be funnier too. There's room for a little more humour in there.
It's worth a try if you have liked other American crime shows but it's not up there with the likes of Criminal Minds or CSI or The Mentalist for example. I'm going to stick with it for season 2 and see how it improves.