Iona and Elba make bird feeders as a present for their Nanny Pip and Gramps, who they are visiting. They place the feeders around the garden and wait patiently for birds to arrive, hoping they'll discover the tasty treats. Back home the sisters dress up their teddy as an astronaut and turn Mum and Dad into space aliens! Then it's 'blast off', as they head off on a make-believe mission into outer space to rescue teddy's lost rocket ship. But will they find it? And are those aliens friendly?