The Sparticles, Holly and Serena all go to Peace City on their way to the River Artos. As Reese is being pulled through as she tells Sadiq, "Peace City might be the Quantum Nexus." Holly and Serena lose the sword (which is taken by Rocky in disguise). Fizzy puts up wanted posters for the Sparticles. Reese meets another person who has special powers named Huen. Tensions rise as Ernesto and Callum arrive. As Holly and Serena exit, Holly spots the sword and shows Serena it hadn't dissolved in the acid bath. She grabs it and they decide to head off for Water Mint Mill.

• Jon East, Jonathan Fox Bassett, Tim Whitby

• Annette Badland
• Larissa Wilson
• Jerome Holder