Under the Dome is available on Amazon Prime.

'Under the Dome' Episode 2.6 Photos: Barbie and Sam Explore a Mysterious Tunnel

"In The Dark" -- When Barbie and Sam set out to investigate a mysterious tunnel, a cave-in severs their path back to Chester's Mill. Meanwhile, Julia and Big Jim face off in a struggle for power as a dust storm rages in the town, on Under the Dome, Monday, August 4 (10:00 - 11:00 PM, ET/PT) on CBS.
By Michelle Carlbert
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