It is fifteen hundred year since Saskia Chandler and Saskia Hunt were changed to be the SuperTwins, Kyra and Katya. Nothing really changes, they still need to use their extraordinary super powers to help and rescue people, and to go places and to do things 'ordinary' people can't do for themselves. But like anybody else, they find a day off is a welcome distraction. Taking a young friend on a trip up the Rope to the orbital space station seems like a good idea for a day out - but their day out is about to turn into a disaster that will take SIX Saskias, three pairs of them, to overcome.