Falling Skies

Three months after Tom Mason agreed to go with the alien invaders, Weaver is still in command of the 2nd Mass, while Anne continues to serve as medic. Pope has taken command of the Berserkers, a renegade group within the 2nd Mass that Weaver doesn't fully trust.

Tom is still haunted by memories of his time with the aliens, while Pope plants seeds of doubt about him among the group. Ben's hatred for skitters grows and the 2nd Mass scouts locate a bridge that will help them cross the river to safety ahead of an impending attack.

The 2nd Mass moves into an airport hanger but the draughty conditions cause concern for the group's health. The Berserkers hatch a plan to get rid of Tom, and while dealing with a loss of one of its own, the 2nd Mass receives a promise of hope from a mysterious visitor.

While on patrol together, Ben and Hal try to help a young boy and wind up having their bikes stolen. The hunt to recover them leads them to the discovery of something much bigger. Also, Matt is put in danger, and Weaver is reunited with a family member.

A familiar face returns to the 2nd Mass, but his intentions remain unknown. Meanwhile, a skitter is captured and brought back to the camp as a prisoner, and Hal bonds with Maggie as she begins to open up about her past.

Hal stumbles across bodies of de-harnessed kids and finds someone from his past. Tom and Anne grow closer and Weaver's health deteriorates just as Tom discovers he may have been keeping important matters from the group in order to protect them.