Melanie and Junior are enthralled by the egg on "Going Home."

Melanie and Junior examine the egg while in the tunnel on "Going Home."

Julia is concerned in the tunnel with the egg on "Going Home."

Joe and Julia are mesmerized by the egg in the tunnel.

Joe, Julia Melanie, Norrie and Junior enter the tunnel with the egg on "Going Home."

A controlling Big Jim looks upset at the diner in "Going Home."

Julia sits on the edge of the abyss as Barbie heads into it.

Barbie begins rappelling down the cavern on "Going Home."

Barbie goes deeper into the abyss in search of Sam on Under the Dome. "Going Home" is the seventh episode of the show's second season.