Ebony demands that Patsy tell her everything she knows, Cloe discovers another of Trudy's secrets, while Bray, Danni, Lex and Ryan find themselves in mortal danger.

While the Mall Rats try to carry on after suffering two devastating losses, a strange cult dedicated to Zoot arrives on the shores near the City.

It is the day of Ryan and Salene and Lex and Tai-San's double wedding, and the Chosen have plans for Ebony and the rest of the Mall Rats.

With Ebony missing and presumed dead, Patsy is racked with guilt. Salene has regrets about her wedding, and Alice finds herself a prisoner of the Chosen.

The tribe is astounded by the return of Trudy, who remains cagey about the details of her escape. Most wonder whether the Chosen will come for her, whereas Ebony sees it as an opportunity to exert power.

Ebony vows to clear her name, the Jackals disrupt trading at market, Alice gets herself into trouble, and Salene finds help from an unlikely source.

The Mall Rats find themselves harassed by kids desperate for the antidote. Following her destruction of the formula, Tai-San searches for herbs to create her own version of it while the Chosen continue their journey to the City.

Alice takes Tai-San hostage until she is sure that Ellie is on the mend, and when she is, the two sisters decide to move to the Mall, with Alice becoming Tai-San's bodyguard. Meanwhile, the Chosen arrive in the City.

Alice is increasingly worried by Tai-San's continued illness, while Jack and Ellie search for answers about the Virus much to Danni's annoyance. Trudy appoints Patsy as Brady's official child minder, with disastrous results.

Trudy is distraught following Brady's kidnapping, with Patsy fleeing to escape her wrath. Tai-San is in a critical condition after an explosion in the laboratory and Alice is determined to find proof that KC was behind it.

With Ebony's fate in Trudy's hands, the pair reminisce about their lives with Bray and Martin before the Virus.

Ebony is irritating everyone with her newfound authority, while Lex finds himself unneeded and unwanted. Jack and Ellie continue to blow hot and cold for each other and Ryan tells Salene about his life with Lex before the Virus.

The Mall Rats host a dance party for all the tribes. Salene is still angry with Ryan, Alice tries to impress Lex, and Ebony is determined to bring the token thief to justice.

Salene finds Ryan just in time, and Jack's spying gets off to a bad start when he is almost caught by Ebony. Cloe's suspicions about Trudy grow, while Tai-San's interference in Lex and Alice's relationship only complicates things further.

Salene is left heartbroken and despondent, Lex breaks the news about his secret relationship to Alice, but neglects to tell her that the object of his affection is Tai-San, and more about Trudy's motives is revealed.

The Mall Rats arrive back home, despondent and still reeling from their loss. Lex, Tai-San and Ebony bring the antidote to the Mall, while Bray brings Danni.

Dal is frustrated with his work party, who believe that the Virus is gone. Ebony is Spike's prisoner, Jack and Ellie are in romantic bliss, while Ryan proves to be a successful teacher.

Alice lies trapped in the farmhouse, Ebony continues to throw her weight around, and Ryan tries in vain to make up with Salene.

Salene feels guilty about not apologizing to Ryan before he went story hunting with Ellie. Meanwhile, Alice falls further for Lex, Trudy's behavior becomes more erratic, and Ebony decides to move out of the Mall.

Bray is confident the Mall Rats can bring peace to the City, but only if they allow Billy-Boy, the leader of the Jackals, to trade at market. Alice makes a move on Lex, Ryan decides to move on, and Jack is given a special assignment.

The tribe is overjoyed by the news that the Chosen have been defeated. KC gets his rat race after all, but he may not have the sure fire winner, while Jack has enlisted Dal to help him spy on Ebony at the hotel.

Lex is ill the morning after his meal at Trudy's, arousing Tai-San's suspicions. Ryan proposes to Salene and Ebony hosts a pool party. Meanwhile, Wolf passes Trudy's message on to the Guardian, who plans terror for the City.

The Mall Rats are worried when the market is abandoned by the other tribes, Alice continues spying for Ebony, Salene brings May back to the Mall with her, and Lex finds himself accused of murder.

Bray finds it difficult to deal with Tai-San's decision to tell him the formula, Jack and Ellie investigate the theory that the Virus came space, while Danni creates a Bill of Rights just as the Chosen invade Alice's farm.

After being confronted by the Chosen at the farm, Dal arrives to tell the tribe about them and they deduce that the Chosen stole Brady. Salene's frustration at Ryan's aloofness sends her off the rails, while Jack makes a shocking discovery.