Weaver becomes suspicious of Katie's behavior, noting that she's not acting like her normal self to which other soldiers agree ; he follows her off-base one night and finds her talking to an overlord which he then kills after she leaves. In this science fiction fantasy, a history professor leads a group of human rebels as they fight back against aliens that have invaded Earth. Desperate, Tom takes her where he last saw the Dornia and pleads with them to save her in repayment for his actions. Katie, under the orders of the overlord, tries and convicts Tom and his family of aiding the enemy and orders their execution. He then finds himself in the ocean and returns to the 2nd Mass and gives a speech telling them to give into their rage and find their warrior, and to take the battle to the Espheni. Maggie promises to help Brian and offers them a chance to leave with them in exchange for Caitlin allowing them to leave with the food, to which she agrees.
Archived from on July 20, 2014. . The 2nd Mass learn of militias fighting against the Espheni worldwide with the help of the Volm, who also inform them that the Espheni are active in several capital cities around the world, and have placed jamming signals to prevent them from learning exactly what they're doing. Meanwhile, The 2nd Mass locates an Espheni device that could be a linchpin to winning the war if they can figure out how to use it. Injured, Tom takes refuge with a unique family who has distanced themselves from the fight, giving him a glimpse of life without war. At the core of the story is Tom Mason, a bookish Boston professor who becomes a commander of a regiment of citizen soldiers.
Tom tells them to leave before a Hornet carries him away. Meanwhile, Tom has to make an agonizing choice that ultimately risks one of their own, leaving lasting repercussions for them all. Tom finds the Overlord, who is controlling Ben, and is told that he has turned into a savage and that he is not afraid of him. Months later, humanity gathers at the Lincoln Memorial to select a new leader for the now-united race. Tom takes the weapon to Anne and Marty who discover that it is deadly to both humans and Espheni, but are able to modify it so that it has no effect on humans. There, the queen explains that the attack on Earth is in revenge for a failed attempt 1,500 years before that led to the death of her daughter.
As a result of the attack, the 2nd Mass and 14th Virginia are forced to stay at their base another night. Ben puts his life on the line to extract enemy plans. That night, with the hatchery destroyed, they return and find Pope who despairs at Sara's death, and Pope tells Tom that he was too late. Meanwhile, The 2nd Mass locates an Espheni device that could be a linchpin to winning the war if they can figure out how to use it. Anthony's mental stability and his loyalties are brought into question. Meanwhile, Tom sets off to rescue Hal from Pope and his dangerous group of survivors. Anne dies of injuries sustained in the assault, but the Dornia resurrect her as thanks.
Meanwhile, back on earth, Anne reluctantly steps into Tom's shoes to help lead the 2nd Mass in his absence. As season five opens, all breed of beast and mutant are running rampant on earth, and humans are now ready to fight against the enemy. Along the way, they encounter a family deeply scarred by the Espheni plan. Katie dies shortly afterward, confessing that she wasn't the real Katie but an Espheni doppelganger sent to infiltrate human resistance groups. And Maggie makes a decision that has consequences for her and the entire 2nd Mass.
Tom tells Anne and the others about the Dornian weapon, and they are unsure if they should use it not knowing how it might affect humans. As a result, the plan is changed so that the other militias attack the wall as a distraction while Tom and Weaver lead a strike team through the city's service tunnels to assassinate the Espheni queen. Isabella and Hal make their way to a truck, and Hal watches as Tom shoots Pope, and is shot by Pope in the leg. Hal and Isabella's romance grows as they search for a missing Tom. Tom infects himself with the Dornia bioweapon as the queen drains his blood, infecting and killing her.
In the tunnels, an Espheni hatchling attack separates the rest of the team from Tom and mortally wounds a pregnant Anne. Tom and the 2nd Mass are filled with rage, ready to destroy the enemy in an all-out battle to determine the fate of Earth. They come to learn that the final battle against the Espheni could be in and they begin a slow march towards the city. The 2nd Mass split into three teams and target three Espheni locations; Tom's team is ambushed by Skitters when they target an Overlord's escape pod and are rescued by Weaver's team, and Sara helps destroy the pod. The 2nd Mass come across a currently occupied by a group of soldiers under the command of female captain named Katie Marshall with whom Weaver once had a relationship. Floyd August 2, 2015 2015-08-02 1.
And Maggie makes a decision that has consequences for her and the entire 2nd Mass. Ben, who has been listening to overlord communications through a recovered Espheni communication device, learns that the Espheni are ruled by a queen who has come to Earth to oversee the occupation and has made the her base. Along the way, they encounter a deranged and desperate gunman who takes Weaver hostage. Maggie must make false promises to insure the 2nd Masses' survival. But along the way, the 2nd Mass face discontent from within and lose important members of the team. When Tom returns, Pope notices that Ryan is not with them and angrily confronts him about his leadership and questions why people except those important to him are dying. They are trying to somehow connect with all the survivors on the planet to give a fitting rebuff to the alien invaders.
It is revealed that the real Katie Marshall died weeks before and the one they encountered was an Espheni clone being used to weed out their human enemies in the guise of hunting for collaborators. After freeing Matt from the Espheni Youth Camp, Tom encounters two mysterious strangers in the woods, who attack his family before embarking with him on a violent journey. And Maggie makes a decision that has consequences for her and the entire 2nd Mass. Anne and other scientists manage to alter the weapon so it only targets Espheni, leaving humans unharmed. Tom then leads a team to a police station for supplies and Dingaan uses a radio to make contact with a resistance group in Peru. Here's a tip, guys: if you want us to care about a character, you have to have them do something likeable first. He then cleans himself up and joins the family for dinner and becomes emotional at the normality of their life.
Along the way Tom learns that the Dornians were the first race the Espheni destroyed, and the skitters that they've been fighting were once Dornians until the Espheni transformed them into their servants. They load up a truck with food and leave for Chinatown, and are then saved by Dingaan's drone when skitters swarm the truck. As expected, the bioweapon passes through the queen's connection to her race and the Espheni die out all over the world, finally freeing Earth. The 2nd Mass set out from Chinatown, but are attacked by a man named Marty who demands their ammo and a truck. Hal disobeys his father to help Maggie on a personal mission.