12 Episodes
Short on time? Here's the essentials:
Humanity continues its desperate fight for survival against the alien Espheni in "Falling Skies" Season 4. Tom Mason, the steadfast leader of the 2nd Mass, strives to protect his family and what remains of humanity. His wife, Anne Glass, a doctor, is fiercely dedicated to finding their daughter, Lexi, a rapidly aging hybrid with mysterious powers.
The season begins with the 2nd Mass ambushed and scattered by a new Espheni weapon, which kills Lyle. Tom, along with Colonel Dan Weaver, finds himself imprisoned in an Espheni ghetto, while their son Matt is forced into a re-education camp. Anne desperately searches for Lexi, who has grown into a young woman exhibiting strange abilities and is seen as a hybrid leader by the Espheni. After escaping the ghetto, the 2nd Mass reunites, but not before Weaver's daughter, Jeanne, dies protecting him. Lexi's powers grow, and she enters a cocoon, emerging transformed and more alien. In a shocking twist, Lexi kills Lourdes, a former member of the 2nd Mass, before aligning with the Espheni and taking control of Tom's son, Ben.
Ultimately, Tom discovers the Espheni's main power source is on the moon, and he rigs a draw to pilot a mission to destroy it. Lexi, realizing the Espheni plan to kill her, turns against her alien mentors and returns to Earth to aid humanity. In a climactic battle, Lexi sacrifices herself by crashing into the Espheni Power Core, destroying it and freeing all humans from Espheni control. The season concludes with Tom encountering a new, enigmatic alien species.
Season 4 of Falling Skies covers episodes 1-12. Here's everything that happened:
Season 4, Episode 1: Ghost in the Machine - The 2nd Mass, nearing Charleston, is ambushed by a new Espheni weapon, an energy fence, which separates the group and kills Lyle. Four months later, Tom, Hal, Weaver, and Pope are in an Espheni ghetto, while Anne leads a search for her daughter Lexi. Matt is in an Espheni "re-education camp," and Ben finds himself in a peaceful Chinatown. The episode concludes with the Masons scattered, facing new Espheni tactics of manipulation and imprisonment, and the Volm have abandoned Earth.
Season 4, Episode 2: The Eye - Tom Mason infiltrates an Espheni ship to gather intel, learning the aliens need human recruits for an upcoming war against a greater threat. Meanwhile, Anne interrogates a Skitter, leading to the devastating revelation that Lexi is seen as a hybrid leader by the Espheni. Weaver and Pope discover a potential escape route from the ghetto, and Matt faces complications in his re-education camp. The episode concludes with Tom being given an ultimatum: join the Espheni or face the consequences for his family.
Season 4, Episode 3: Exodus - The 2nd Mass executes a daring plan to escape the Espheni ghetto, with Pope unexpectedly taking over the critical task of disabling the perimeter fence after Dingaan is injured. Meanwhile, Anne has a disturbing flashback revealing a secret about Lexi's origins. The episode concludes with the successful breach of the fence, allowing the survivors to escape, though Weaver senses an unknown presence.
Season 4, Episode 4: Evolve or Die - After escaping the Espheni ghetto, the 2nd Mass finds refuge with the Volm, but tensions rise. Tom, Weaver, and Cochise search for Matt, while Anne reunites with a grown Lexi. Weaver is devastated to discover his daughter, Jeanne, has been transformed into a monstrous creature and dies protecting him from a Skitter. Meanwhile, the Espheni reveal their plan to evolve humanity into hybrids, and Lexi, manipulated by an Espheni Overlord, begins to question her path. The episode concludes with the Espheni communicating telepathically, hinting at further sinister plans.
Season 4, Episode 5: Mind Wars - After freeing Matt, Tom encounters Nick and Cooper, who reveal they made a deal with the Espheni. Cooper kills Nick, then himself, unable to live with his actions. Meanwhile, Lexi reveals the captured Espheni is her father, leading to a confrontation with Anne. The episode concludes with Lexi releasing her father, and Tom's group narrowly escaping an Espheni ambush.
Season 4, Episode 6: Door Number Three - Tom reunites with the 2nd Mass, but their joy is short-lived as Lexi enters a mysterious cocoon. Anne attempts to recall repressed memories to understand Lexi's condition, while tensions rise over how to handle her. Ultimately, Lexi emerges from her cocoon and, out of pity, kills Lourdes before departing Chinatown.
Season 4, Episode 7: Saturday Night Massacre - In a devastating battle, Lexi abandons humanity, killing Lourdes and joining the Espheni. The 2nd Mass suffers heavy losses during an alien attack, including Dr. Kadar and Tector Murphy, who sacrifices himself. The episode concludes with Lexi taking control of Ben, forcing him to follow her onto an Espheni ship, leaving the remaining survivors in ruins.
Season 4, Episode 8: A Thing With Feathers - Following a devastating alien attack, Maggie is found paralyzed. To save her, Ben undergoes a dangerous procedure to have an Espheni spike implanted, leading to Maggie's survival but Ben's severe injury. Meanwhile, Tom and Dingaan are trapped under rubble and must use an enemy ship to escape. Lexi reveals her true, Espheni-aligned nature to Ben.
Season 4, Episode 9: Till Death Do Us Part - Tom and a team discover the Espheni power source is on the moon, leading to a plan to attack it. Meanwhile, Matt is betrayed by Mira, who alerts the Espheni to their location, leading to a battle where the Volm cache is destroyed. Tom and Anne get married, and Mira's betrayal results in a devastating attack, though the team escapes injured.
Season 4, Episode 10: Drawing Straws - The 2nd Mass prepares for a perilous mission to destroy the Espheni Power Core, drawing straws to determine who will pilot the alien Beamer. Tom Mason rigs the draw to ensure he is chosen for the mission, revealing his controlling nature. Meanwhile, Lexi, having learned of the Espheni's plan to kill her, destroys her Espheni mentor and returns to Earth, decimating incoming Beamer ships. The episode concludes with Lexi's dramatic return, ready to fight alongside humanity.
Season 4, Episode 11: Space Oddity - Tom's mission to destroy the Espheni Power Core is complicated by Lexi's return. After a Beamer malfunction, Lexi uses a cocoon to save herself and Tom, leading to a shared dream where she seeks forgiveness. They awaken to find their ship damaged and Lexi sacrifices herself by crashing into the Espheni Power Core, destroying it. Tom's ship is then blown off course.
Season 4, Episode 12: Shoot the Moon - Tom and Lexi's mission to destroy the Espheni Power Core culminates in Lexi's self-sacrifice as she crashes her ship into it. On Earth, the fog and creatures disappear as the core's destruction frees all humans from Espheni control. The season ends with Tom encountering a new, beautiful alien species, hinting at future conflicts.
