Highlights from the Fifth Episode of Season 1 of Under The Dome

"Blue on Blue "-- The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: Rachelle Lefevre as Julia Shumway. Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: L-R Mike Vogel as Barbie and Rachelle Lefevre as Julia Shumway. Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: Dean Norris as Big Jim. Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: L-R Dean Norris as Big Jim and Natalie Martinez as Deputy Linda. Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: Mike Vogel as Barbie. Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: L-R Mike Vogel as Barbie and Nicholas Strong as Phil Bushey. Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: L-R Mike Vogel as Barbie and Rachelle Lefevre as Julia Shumway. Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: L-R Rachelle Lefevre as Julia Shumway, Aisha Hinds as Carolyn Hill and Alice Calvert as Samantha Mathis Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: L-R Jolene Purdy as Dodee and Nicholas Strong as Phil Bushey Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: L-R Colin Ford as Joe and Mackenzie Lintz as Norrie Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: Mike Vogel as Barbie. Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: Natalie Martinez as Deputy Linda. Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured (L-R) Josh Carter as Rusty and Natalie Martinez as Linda Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: L-R Mike Vogel as Barbie and Jolene Purdy as Dodee Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: L-R Mike Vogel as Barbie and Jolene Purdy as Dodee. Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: Natalie Martinez as Deputy Linda. Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: Rachelle Lefevre as Julia Shumway. Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: L-R Mike Vogel as Barbie and Rachelle Lefevre as Julia Shumway. Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: Rachelle Lefevre as Julia Shumway. Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: Rachelle Lefevre as Julia Shumway. Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: Dean Norris as Big Jim. Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured (L-R) Josh Carter as Rusty and Natalie Martinez as Linda Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: L-R Mike Vogel as Barbie and Jolene Purdy as Dodee. Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: Jeff Glor anchor of the Sunday edition of the "CBS Evening News". Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: L-R Mackenzie Lintz as Norrie and Colin Ford as Joe. Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: L-R Alice Calvert as Samantha Mathis and Aisha Hinds as Carolyn Hill Photo: Kent Smith/©2013 CBS Broadcasting Inc. All Rights Reserved.

The Chester's Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome, on UNDER THE DOME. Pictured: L-R Mackenzie Lintz as Norrie and Colin Ford as Joe Photo: Best Possible Screen grab©2013 CBS Broadcasting Inc. All Rights Reserved.