Alien intelligence are still in control of a near-future Los Angeles. In an effort to get their son back, Will has been cooperating with the Collaborators and now knows about his wife Katie's alliance with the Resistance. With her secret out and finding themselves on opposite sides of the battle, have they jeopardized any hope of reuniting their family?
Meanwhile, Broussard returning home and Snyder receiving a job offer from a mysterious organization.

Will, Devon and Charlie try to get home; Katie, who fears the worst, says goodbye to her daughter; Bram makes friends at camp; Maddie finds a new project.