Join Pip and her friends as they uncover the mysteries of the electromagnetic spectrum when wave energy starts disappearing from the Whispering Wavelengths. Through music, dance, and friendship, they learn about radio waves, infrared, visible light, ultraviolet, and X-rays while trying to stop Thornok's mechanization plans.
When strange harmonies start echoing through Whistle Woods, Pip and her friends discover something is wrong with the forest's waves. The Great Oak sends them on a quest to the Whispering Wavelengths to investigate the disruption.
The team reaches the Harmonic Spire where they meet Echo and Georgie, who reveal that various wave patterns throughout the crystal formations are malfunctioning. They discover this is just the beginning of a larger problem affecting the entire Whispering Wavelengths.
At the Rainbow Resonance chamber, the team discovers that both light and sound are being affected. Through Georgie and Echo's teachings, they learn about the electromagnetic spectrum and how different types of waves are connected yet distinct.
Deep in the Frequency Forest, the team discovers how radio waves help the forest communicate. When the Cyber Noodle Squirrels' signals get scrambled, they learn about the longest waves in the electromagnetic spectrum and find the first clues about something collecting wave energy.
When Rubes starts glowing mysteriously, the team discovers his connection to infrared waves. Through understanding and controlling heat energy, they gain their first advantage in understanding what's happening to the electromagnetic spectrum.
In the Crystal Berry Garden, the team meets Gem and learns about ultraviolet light when the crystal berries start growing in impossible shapes. The mystery deepens as they discover more evidence of wave energy being stolen.
The team discovers Thornok's hidden laboratory in the Quantum Crystal Cavern, where ancient X-ray crystals are being used for his mysterious device. They learn about the highest-energy waves in the spectrum while uncovering Thornok's master plan.
Thornok reveals his Wave Trap 3000™, a device designed to capture and control every type of wave in the electromagnetic spectrum. The team finally understands how all the different waves are connected and why each type is being collected for his mechanization plan.
Understanding that electromagnetic waves share common properties despite their differences, Pip leads the team in using their unique abilities to create a synchronized pattern of wave energy. Through science and teamwork, they attempt to overload Thornok's machine.
With Thornok's machine defeated and the electromagnetic waves restored to their proper places, the team celebrates their victory while learning the final lessons about how different types of waves work together in nature. The Wavelength Window is created to help future squirrels understand wave energy.