Watch Under the Dome Season 3 Episode 12 - The Enemy Within

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Under the Dome Season 3 Episode 12
In the series finale, the Dome comes down and the Resistance defends the outside world from the infected townspeople.
First Aired: September 10, 2015 -

Also starring Rachelle Lefevre

Watch Under the Dome - The Enemy Within (s3 e12) Online - Watch online anytime: Buy, Rent

Under the Dome, Season 3 Episode 12, is available to watch and stream on CBS. You can also buy, rent Under the Dome on demand at CBS, Amazon Prime, Amazon online.