Ubercorn, Foz and Xuli help NASA test their Mars Rover in the Atacama Desert. As the oldest and driest desert in the world, scientists think it's somewhat like Mars itself! The rover is looking for tiny microbes hidden in the dry soil - if it can find them here, it may be able to find them on Mars too.
Meanwhile, Glitch and Tala have dressed Grim HQ up as a flying saucer to take tourists to Mars. But after losing control, they end up crash-landing in the Atacama. When a science experiment of Tala's starts to go wrong, the Go Jetters must work to stop an unexpected flood in this driest of places.
