Matilda and the Ramsay bunch are on a mission to relieve the boredom in Great Ormond Street Hospital. The young patients on the ward need to have dialysis sessions which involve being connected to a machine for around four hours at a time, which is really, really dull! Tilly, So Megan and Holly have come to the hospital to try and transform one of these sessions with some food and some fun. Tilly kicks off the day by wheeling a fairground popcorn machine onto the ward and cooking up three deliciously different flavours. After a very messy cheese puff challenge, she makes a giant, edible message board with help from everyone on the ward and then she pranks the parents and nurses with some yummy looking ice creams!