When everyone else mysteriously vanishes from their wealthy town, the teen residents of West Ham must forge their own society to survive.

1. What Happened 58m After their class trip is cut short, students at West Ham High School return home to discover their town completely empty.

2. Our Town 59m Cassandra and her friends prepare for an uncertain future, while Harry's crew just wants to party. Sam and Becca make a discovery.

3. Childhood's End 61m After the boys ransack the stores, Cassandra rallies the girls to exert their power. The students plan a prom, and Kelly uncovers a family secret.

4. Drop by Drop 57m A shocking event puts everyone on edge. As chaos sets in, Allie's friends urge her to step up and lead. Gordie conducts an investigation.

5. Putting on the Clothes 54m A student's confession leads to an arrest and a trial. Elle experiences Campbell's dark side, and Harry's drug use escalates.

6. Like a F-ing God or Something 49m Allie questions Elle about Campbell. As the town grows restless awaiting Allie's decision, Will and Grizz push for harsh measures.

7. Allie's Rules 54m Six months later, Harry sinks deeper into depression, Grizz and Sam bond, Gordie arrives at a theory about West Ham, and Elle puts a plan into action.

8. Poison 53m A Thanksgiving feast takes a frightening turn. In the aftermath, the Guard oversteps its powers. Meanwhile, Sam is torn between Becca and Grizz.

9. New Names 61m Will tells Allie he has feelings for her. Elle confides in Helena. Campbell pressures Harry to run for mayor. Grizz leads an expedition.