‘Witness’ is a new 4-part documentary from HBO and executive producers Michael Mann and Davide Frankham.  It follows combat photographers into conflict zones in Mexico, Libya, South Sudan and Brazil.  The next episode airs tonight at 9pm ET.

Check out the trailer below.

[youtube http://www.youtube.com/watch?v=2dkFTRBGxKA&w=640&h=360]

More details on HBO’s website.

[via A Photo Editor]