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- Writers: Brian K. Vaughan
- Stars: Mike Vogel, Rachelle Lefevre, Alexander Koch, Colin Ford,
In Zenith, Barbie asks his father to get a message to Julia but learns from a new friend that the message was altered. Barbie also learns that his father's company has been monitoring all activity in the dome for the government - but not necessarily sharing everything they've seen. Meanwhile, Sam and Pauline try an experimental drug on Lyle who manages to come out of his stupor. Back in Chester's Mills, Big Jim makes himself the new sheriff. After someone tears down the windmill and torches a car he sold, he concludes that someone is sending him a message.