Junior tries to make Joe help the kinship (by beating him up) in exclusive Under the Dome clip 

Even the kinship is looking to bring the dome down on 

, and, as a new clip from this week’s episode suggests, the dome’s fate may entirely rest on Joe’s shoulders. Uh-oh.

In the exclusive clip from “Legacy,” Junior and Sam go to interrogate the captured Joe, hoping to bully him into helping bring down the dome before it calcifies and kills them all. As it seems no one else in the dome can understand soundwaves, they hope Joe will give into the kinship’s pull and assist them.

Unfortunately, Joe is not so easily swayed, and so Junior decides to use a little force to get what he wants. Watch the clip above to see them fight, and check back tonight for EW’s recap of the latest 

 to find out whether they succeed in changing Joe’s allegiances.

•Big Jim shows a little heart — but just a little — in exclusive 

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