Dru avoids a school dental check-up by persuading his twin brother Kal to go in his place. While celebrating Diwali, they notice Kal's new abilities. Could they be linked to a warning from recently disappeared classmate Tim?

Tim returns to school, but he is behaving strangely. Discovery of the tunnel puts the Unlisted in jeopardy, and the twins have to decide whether they can trust their Bua when she accepts a job with the GCI.

Kymara makes a mistake that places the other Unlisted in danger. The twins face increased scrutiny following a new arrival at the Sharma house, Chinese exchange student Jiao.

Jiao earns the twin's trust when he helps them out of a sticky situation, but his intervention rouses the suspicion of class bully Regan. A field trip to GCI headquarters sees the boys entering the lion's den.

Horrified by what has happened to Jiao, the twins team up with Bua to bring down Infinity Group from the inside. But as the GCI takeover continues at school, the boys are barely able to maintain their cover.

Rose and Gemma make plans to meet with another Unlisted kid, Mack. At school, the new caste system stirs resentment among some of the students, and Kal begins to enjoy his Elite status a little too much.

As Infinity Group's hunt for missing children ramps up, the Unlisted make themselves at home in the Sharma house. Dadi becomes a powerful ally when she stumbles across the kids. But Kal's behavior grows increasingly erratic.

When they discover the true purpose of the Global Child Congress, the Unlisted hatch a plan to take down the GCI mainframe. Kal's strange behavior forces Dru to make a painful decision.