Watch Lockup Season 10 Episode 4 Online

While Boston, Massachusetts maintains its colonial past, it's ranked as one of the world's leading metropolitan areas for education and innovation. In the heart of downtown, however, is a reminder that not everyone is on the right track. In this hour: an old school bank robber maintains his swagger; an inmate with an imaginary friend proves to be a challenge for the jail, and a shocking act lands his sister behind bars, as well.