While checking out a rogue planet, Ella, Slippy and Madhu crash onto its surface. When the heat from underground causes the planet’s icy crust to burst open, they all tumble down into the darkness and become separated. Madhu, Ella and Slippy are unsure what to do. Ella finds Glitch and Slippy finds Maggie. In this different world, Ella and Slippy must learn to change their problem-solving tactics to find their way back to each other, reunite with Madhu and off the very unstable surface of the rogue planet.

The year is 3021. The place is the Milky Way, where eight-year-old Ella gleefully heads out with her friends on exciting adventures of discovery. At only eight, she already knows quite a bit about space... but there is always more to explore!