A hurricane is quickly approaching a small town in Florida leaving the residents little time to prepare. When the hurricane finally hits, many of the residents' lives are in peril. Rose, one of the town's smallest residents notices some mysterious lights in the heart of the hurricane. Meanwhile, after the storm, Dave discovers some mysterious skeletal remains.
Ranger Russell Varon finds a strangely eaten corps nearby the wrecked Ranger station, practically a skeleton, and an unconscious airman in a wetsuit, Paxton, who has mysterious bite-marks in the neck. In hospital, brother-in-law Dave Groves continues elaborating his alien landing theory, photographs Paxton's wounds, like his own, and hears him say 'Don't let them win'. Russel's ex Dr. Mariel Underlay, who gets bitten by a living suck-organ broken off Paxton's wound, and her present lover, sheriff Tom Underlay, have a hard time trying to calm the local population, now ...
[lacking the beginning] Taking a shortcut when getting gas, Russel Varron and Kira Underlay pass an upside-down, practically flooded mobile home trailer and dive to investigate it. A mysterious light approaches underwater, and while Jesse observes fascinated causes an explosion, which knocks the boy out. Kira flees but alerts his dad Rssel, who immediately dives, sees the light disappear and carries Jesse to hospital, where ma Mariel diagnoses 'mere' glass cuts and gives him her own blood because AB- is short, but it nearly kills him because of a hemoglobin count ...
After barely surviving a car crash that has left her injured and the fate of her unborn baby uncertain, Larkin is picked up by a man whose suspicious actions cause her to question his motives. Meanwhile, Mariel desperately tries to emotionally reconnect with her son, Jesse.
After reading his internet blog about the strange happenings in Homestead, Dave is abducted by a couple, Pria and Healy, who have a vested interest in learning what he knows about the circumstances surrounding the hurricane's aftermath. Meanwhile, Sirk learns the identity of the dead woman found in the bay and tells Sheriff Underlay. Later, Sirk gets his first look at one of the orange, luminescent beings in the water.
After a visit to Mariel, Russell finds that Tom has taken the children on a vacation without asking permission. Someone is hiding outside of Mariel's house and is discovered by Russell. Larkin is suspicious of Russell's intentions towards Mariel.
After Tom is shot, he is taken to hospital to recover. While there, he starts to drift between the past and the present, meeting Mariel for the first time with Russell, but he is fully aware that he already loves Mariel, causing him some confusion during the experience.
While reluctantly teaming up to catch two armed hybrids who are the run and extremely volatile, Russell and Underlay stumble upon several suspicious migrant workers who have been banished from the rest of their group.
Mariel finds Christine outside the hospital, and Christine forces Mariel to help her with the pregnancy. Mariel tries to contact her husband Tom now that Christine has been found. Also, school starts again, and the students are not all what they seem. Dave finds a boat key and gets Russell to take a trip with him into the lake, expecting to find something in the water, but only to find something much more suspicious...
While Russell and Underlay return to Homestead in an attempt to thwart Szura's plans during the impending hurricane, Mariel, Larkin and the kids are rounded up by the National Guard for their protection. But Mariel and Larkin suspect that their saviors may well be their captors. Meanwhile, Underlay's deputies question Dave as to the whereabouts of the sheriff.