Titled "Mahunt," the network describes the episode as follows:
When a former deputy goes rogue, Big Jim recruits Barbie to join the manhunt to keep the town safe. Meanwhile, Junior is determined to escape the dome by going underground, on UNDER THE DOME, Monday, July 8 (10:00-11:00 PM, ET/PT) on the CBS Television Network.
SERIES REGULARS: Mike Vogel (Dale “Barbie” Barbara), Rachelle Lefevre (Julia Shumway), Dean Norris (James “Big Jim” Rennie), Natalie Martinez (Deputy Linda), Britt Robertson (Angie), Alex Koch (Junior), Colin Ford (Joe), Nicholas Strong (Phil Bushey), Jolene Purdy (Dodee), Aisha Hinds (Carolyn Hill)
RECURRING: Mackenzie Lintz (Norrie), Beth Broderick (Rose Twitchell), John Elvis (Ben Drake), Ned Bellamy (Reverend Coggins), Kevin Sizemore (Paul), Leon Rippy (Ollie)
GUEST CAST: Katie Garfield (Girl #1), Chantelle Mussenden (Girl #2), Darryl Booker (Townsman #1), Nick Basta (Townsman #2), Bill Eudaly (Older Man), Deborah Childs (Older Woman), Andrew Vogel (Carter)