Molly's class is going on a field trip to the Space Science Centre, but Molly thinks they'll be blasting off into outer space. Everyone tries to tell Molly that the trip won't involve visiting outer space, but Molly is sure they're all wrong. When Mr Rose confirms that they will be keeping their feet on Earth, Molly comes up with a secret plan. Will Molly's secret plan send her into space? Or will she remain grounded? Part of the Molly Mac series.