The fast-talking Salty, short-fused Rodney, and techno-geek Ollie are the world-famous Salty Roos! A group of humans mixed with kangaroos thanks to radiation from an alien meteor, the Salty Roos travel around the world, solve mysteries, and compete in extreme sports. They recently helped Piper after the passing of her grandfather, which involved taking on a bunch of nasty vampires. Now, while Piper remains on Earth to finalize things at her grandfather’s estate, the Roos find themselves on an out-of-this-world adventure! With the entire world at risk from an unknown extraterrestrial, it’s up to the Salty Roos to travel to space with the help of the United States Space Force!