Bray explains that he has been spying on the tribe to make sure the mall is a safe place to bring Trudy to have her baby -- but should she be allowed to stay?
Bray still hasn't returned, and Trudy continues to be ill, preventing her from feeding the newborn baby and prompting Dal to make the dangerous trek to his father's surgery at the abandoned hospital for antibiotics.
Unexpected "guests" have been found in the mall, prompting a new method for assigning chores -- now, if only the various tribe members can adhere to their assignments.
It's up to Lex to get Jack off the hook for hiding food from the rest of the tribe -- otherwise, Lex's own secret supply of water may be revealed as well.
Frightened by ghastly sounds coming from beneath the mall, the guys accompany Lex into the sewers to investigate -- that is, all but Bray, who seems to know what the others are after.
Despite having won the election, Lex appears to be losing his war against Amber as the boys begin to help the girls with their assignments, and he takes it out on Bluebell.
Zandra is ready to take things to the next level with Lex, but when their date goes horribly awry, the other girls in the tribe feel Lex should be punished.
As the Mallrats prepare for the impending attack on the mall by the Locos, Bray sets Ebony straight with the truth about Zoot's mysterious disappearance and comes to an agreement with the Locos' new leader.
Trudy decides to take her depression into her own hands by downing a bunch of sleeping pills and is discovered by Salene, who chooses to do nothing about it.
Tensions are high within the Mallrats. Trudy has woken from her self-imposed slumber, becomes confrontational with Amber and gives Bray the silent treatment.
Tai-San continues to elude Lex's affections the morning after their trysts, much to Lex's confusion and frustration. Meanwhile, Ryan has romantic -- though odd -- dreams about Zandra.
The Nomads have decided against Dal's leaving the tribe and have taken him prisoner. Sasha's attempt to release him lands him in custody as well -- but what do the Nomads have in store for their prisoners?
Dal and Sasha work out a plan of escape from the Nomads. Back with the Mall Rats, Zandra's anger and distrust of Tai-San goes on, prompting her to assign Lex a true test of his loyalty.
The tribal gathering goes horribly awry, with Lex meeting an old foe and the gang getting on the wrong side of Ebony. Meanwhile, at the Mall, Salene confesses all to Trudy.
Food continues to go missing from the supply, and though Trudy has forgiven Salene the wrongdoing, she encourages her to come clean to the rest of the group.
A lot more food has gone missing, and people are starting to notice. Sasha is becoming more and more a favorite among the Mall Rats, including Amber. Bray, however, isn't nearly as keen on Sasha's presence.
Sasha leads a group to trade with another tribe living at a nearby farm. But despite Bray's warning to leave the mall after the wedding ceremony, Sasha finds himself getting even closer with Amber.
With the place in complete disarray, Trudy is becoming increasingly frustrated with being the only person who works around the mall. Jack wants to become more mobile and enlists Dal and KC to help make it happen.
Ryan and Salene become considerably closer as he helps her escape her newfound prison and she entrusts her secrets with him. Having decided to leave the tribe, Amber and Sasha return to the mall to find the gang in shambles.
Patsy has come face-to-face with the mysterious adult wandering about and convinces him to come back to the mall in hopes that he'll help restore order and hope to the group.
What was once believed to be a blessing becomes the Mall Rats' worst nightmare when it's discovered that the mysterious old man seen wandering the streets is actually Glen, who now has the virus and has begun rapidly aging.
Following Glen's death, the tribe are more determined than ever to find a cure for the Virus. Bray, Amber, Lex and Dal travel to Hope Island in search of information.
Amber, Bray, Lex and Dal are trapped inside the lab at Hope Island with little time to escape before "full decontamination" of the facility is initiated.
In his efforts to help Cloe escape the casino, KC has been captured. To continue the clearing of his conscience, Lex sets out to rescue KC, though the young gambler may not be welcomed back to the mall.
Just as Bray feared, the Tribe Circus -- led by the insane Top Hat -- invades the mall attempting to enslave the Mall Rats, but the Mall Rats aren't giving up without a fight.
The mall has been set ablaze by Top Hat and the Tribe Circus, and the Mall Rats are hopelessly trapped inside-- that is, until Lex secures a deal with Ebony and the Locos.
Ebony seems to have won, having taken not only the antidote, but also Lex and Bray. But Amber's not giving Bray up so easily, and she embarks on a search for the Locos' hideout.
Bray is still being held prisoner by Ebony, but the tribe hatch a plan to spy on her hotel. Meanwhile, Lex struggles to survive alone in the City and tempers flare at the Mall.
Jack believes he's uncovered the secret to the mysterious formula, but he has a hard time convincing the others to go along with his hunch since it means potentially leaving the mall for good.
