This series heralds an almost mass exodus of many of the familiar and long-running cast members from series 1, including Patsy and Ryan (who are taken away by The Chosen) and Dal (who fell to his death). A trend of introducing expendable, short-term characters, such as Andy, Tally and Ned, is started. In fact, Pride is the only character introduced in Series 3 who also appears in the proceeding Series.
Series 3 also shows two strong couples together for much of the season: Tai-San and Lex, and Amber and Bray. Tai-San and Lex struggle to maintain their marriage, despite Lex's blinding jealousy of Tai-San's bond with the Guardian and her problems with Lex's corruption as city sheriff. Amber and Bray mainly find solid ground and conceive a child together. They balance their private life with their public ones as leaders. Salene and Ryan also conceive a child but it is lost when Salene falls down some stairs. Ryan is taken away by the Chosen after attacking the Guardian, because he was told he would not be allowed to see his baby under the religious rules.
The series ends on a cliffhanger, with Amber being left to deliver her baby alone in a barn and with the sight of airplanes flying over the city: a sight not seen since before the virus hit. Can it be the adults?