Russell and Tom team together to try to catch a pregnant Christina and Derek, who are armed, dangerous and on the run. While searching Russell and Tom find a group of migrant workers. Mariel confides in Jesse and Rose about what happened to her. An unconscious Kira is in the hospital after her encounter with the orange being. Larkin searches for more answers about Paxton and his real reason for being in the area during the hurricane.

Mariel begrudgingly performs an ultrasound when Christina demands to know what is growing so quickly inside of her. After the school reopens, Jesse is bothered by the way; some of the fellow students are acting. Russell and Dave investigate what Healy knew about the hybrids.

Russell and Dave investigate what's happening on Szura's island in the Keys. Tensions rise at school between the students who were changed by the hurricane and those who weren't. Underlay tries to find out the extent of the military's involvement in post-hurricane changes.

After his investigation of the hybrids, Russell finds that he may be out of a job. Sensing another storm, the hybrids prepare. Rose's teacher is teaching a subject that has Russell bothered. Jesse and a school friend find a way to get even with the hybrids.

Russell and Underlay find that they have to work together as another storm is quickly approaching. They need to get their families out of Homestead and to try to find where Szura has stashed away the hybrids.

As the hurricane starts to hit the town of Homestead, Russell and Tom try to stop Szura. The National Guard rounds up Larkin, Mariel and the children. Mariel and Larkin have suspicions about their rescuers. Dave is questioned as to Underlay's location.

In the middle of the hurricane chaos, Underlay and Russell mount a rescue of the humans who are being round up by the hybrids. Meanwhile, two humans who suspect that Underlay is the cause of the chaos take Larkin, Dave, Jesse and Rose as hostages.