robert overton serving one year for possession of a firearm by a felon. works hard to stay fit.e does pushups with jail-crafted blocks. >> just to get depth in the pushups. i don't think any of these are the bible. that would be, what's the word, blasphemous? got to keep the chuck liddell look, know what i mean? >> overton spends most of his day working in the jail's welding shop which he hopes will provide him with the skills to stay out of jail for good. >> it's like a sanctuary, i get to be away from everybody, don't have to put up with all the bs. i don't know nobody comes over and bugs me. >> during breaks it's another quick workout. a previous inmate welder forged his own creation, a 70-pound dumbbell. >> this is my gym over here. it's not so obvious. when i'm done i move this back over to here. i go back to doing work and nobody's the wiser. i'm 52. i figure i've got another good 50 in me. trying to take care of myself, trying to make this next 50 better than the last. changing everything up a bit. be there for my kids and my grandchildr grandchildren. just be a grandma.