In the series premiere of this compelling reimagining of the landmark miniseries about the world's first encounter with an alien race, the Visitors or V's are initially viewed with fear, but they quickly become a fascination. For Tyler (series star LOGAN HUFFMAN), a teenage boy, they are his ticket to being a part of something big, something that offers hope; and when he meets Lisa (series star LAURA VANDERVOORT), an alluring Visitor, she encourages these thoughts. To Chad (series star SCOTT WOLF), a career-hungry news anchor, his exclusive interviews with Anna (series star MORENA BACCARIN), the leader of the V's, are crucial to his dominating the airwaves. Father Jack (series star JOEL GRETSCH), a priest with questioning faith, is hesitant to believe in the righteousness of the Visitors and goes outside the church to search for the truth.

After quickly determining that they are both against the arrival of the Visitors, Erica and Father Jack find themselves being tracked by a "Seeker" from the V's. Meanwhile, Chad, who thinks he blew it for 80 million viewers with his exclusive first interview with Anna, looks to boost himself up, and he becomes more investigative in his next newscast. Plus, Erica is questioned about the whereabouts of her colleague, Dale Maddox (recurring guest star ALAN TUDYK - 3:10 to Yuma; I, Robot; Firefly; Serenity).

Chad reports from the Peace Ambassador Center as 100 diplomatic visas are being issued to the first wave of Visitors in the U.S. Anna will get the first, but not everyone agrees with the decision. Meanwhile, Erica, who is paired with a V officer, has started tracking a death threat, and Ryan begins reaching out to his old friends to build up opposition forces to help fight off the V's.

In this riveting cliffhanger, Erica works with newly formed allies to uncover a biological threat they suspect the Visitors have been plotting. Aboard the mothership, Anna meets with a special guest while managing the investigation into the murder of a V. And Chad begins a segment on the V Healing Centers, demonstrating their amazing medical abilities but soon finds himself conflicted by some of his findings.

As the story continues, Erica finds her life in danger when she's attacked at home, and, as the Visitors build up their defenses, a dangerous new member is recruited for the Resistance. Meanwhile, Anna wonders why Chad hasn't followed up on his diagnosed aneurysm, and Ryan's concern grows over Val's "abnormal" pregnancy. Recurring guest stars DAVID RICHMOND-PECK (Fringe, Robson Arms, Beyond Sherwood Forest) and ROARK CRITCHLOW (The Mentalist, Mending Fences, Afterworld) appear as Georgie and A.D. Paul Kendrick, respectively.

Anna introduces her pilot program to invite select groups of humans to stay on each of the 29 spaceships, and Ryan must deal with the fact that Valerie's pregnancy is wildly accelerated. Plus, Tyler learns a secret about his mom, Erica, and someone makes a sacrifice to save Ryan. Recurring guest star DAVID RICHMOND-PECK appears as Georgie.