Tom and his sons leave Charleston and ride on the road looking for Anne and Alexia. Out of the blue, they are robbed by a masked gang that steels their horses, supplies and weapons. However the Mason family decide to look for the group and retrieve their belongings. They find the robbers in their farm and there are betrayal and confrontation. Meanwhile Conchise brings the wounded President Hathaway to Charleston and he sees the Volm weapon with Marina and Weaver.
'The Pickett Line" is an episode of "Falling Skies" where the surprising identity of the mole is disclosed. Now that the viewer knows who the assassin and spy is, many occurrences in the past make sense, inclusive how the location of the meeting between Hathaway and Tom was discovered. Hard to understand why Tom leaves his sons and the search for Anne and Alexia to help the Pickett family. My vote is seven.
Title (Brazil): "The Pickett Line"