Falling Skies

After a devastating alien invasion of Earth, widowed history professor Tom Mason leads survivors to battle the occupiers and rescue his sons.

While scouting for supplies, Tom, Hal and their squad encounter a group of violent pillagers who are determined to build an arsenal of weapons.

Dr. Michael Harris joins the 2nd Mass militia to investigate the fate of the abducted teens, while Tom launches a perilous mission to rescue his son.

Tom and his team hunt for more motorcycles for the 2nd Mass. The mission is a success — until dangerous, harnessed teens attack, jeopardizing the squad.

Hal devises a plan to rescue the captured teens, but it might require putting someone at risk. Meanwhile, tragedy strikes.

Lt. Terry Clayton of the 7th Mass warns of an upcoming alien attack, suggesting they evacuate the 2nd Mass' children, but Tom is skeptical of his plan.

Hal is set to battle a sudden threat against the children of the 2nd Mass. Anne must jump into action when Sarah goes into labor.

Tom isn't convinced that Weaver is fit to lead. The 2nd Mass prepares for a bold attack on an alien base to turn the fight in humanity's favor.

As the 2nd Mass prepares for vicious attacks, divisions within the ranks just might tear the group apart.

Weaver spearheads an assault on the Espheni forces, while Tom stays behind to protect evacuating civilians before confronting a sudden crisis.