How to add Earth Rangers Underground to Toniebox and Yoto

Did you know there's a secret world of animal agents right under our feet? It’s true. For generations, a shadowy agency of four-legged investigators has been working to protect planet Earth from environmental disasters. Desperate to save their failing local chapter, legendary Agent Saul the squirrel and his sidekick Phoebe the leopard gecko, have broken the cardinal rule and teamed up with (GASP) ...Humans! But not just any humans: Asha & Ollie's groundbreaking methods will help the Earth Rangers protect their local park, all while trying to steer clear of the boss, a human-hating polar bear.