Bob gets a letter from the allotment committee saying that he needs to tidy up the plot where he grows his fruit and veg – today! But he has hurt his back, so Mack offers to help with the weeding while Molly helps Bob on his stall. Mack ropes in James's support and they take Magnus and Suki with them to the allotment.\n\nMoira brings Caitlin to the Kids Club, but as no-one is there to look after her, Bob says Caitlin can help too. At the allotment, there are far more weeds than James and Mack were expecting; they don't know how they'll ever finish on time. Meanwhile, Caitlin fills a planter with soil, making both a big mud monster and a big mess! When Molly sends a photo of the mud monster to James, it gives him an idea – he thinks of the perfect way to shift the weeds before the allotment inspector arrives.