Captain Teggs is no ordinary dinosaur - he's an astrosaur! On the incredible spaceship DSS Sauropod, along with his faithful crew, Gypsy, Arx and Iggy, Teggs rights wrongs, fights evil and eats a lot of grass! The Astrosaurs are on another mission when they almost crash into a deserted space station. It turns out to be a dinosaur prison that has been hit by a meteor and abandoned. Teggs and Iggy Investigate - but are taken captive by two dastardly prisoners who are hiding out in the wreckage. The master criminals have a body-swap machine - and they use on the Astrosaurs! Can Gipsy and Arx save their Captain before it's too late?