Heap of Trouble/Great Billboard of Fire/Going Out With a Bang/Girls' Night InFor the Pontypandy Flower and Vegetable show Mike is entering a marrow that has been growing on compost. But he did not heed Sam's advice about turning it over regularly. / As Norman and Mike compete to promote their separate shows, Mike's electric billboard is suddenly on fire and rolling downhill towards a fuel truck. / While looking for Lion the cat Mandy Flood knocks over a firework and starts a fire in Mike's workshop. / Mandy offers to babysit Lily when Helen Flood invites Mrs Chen and Penny over for a girls' night in but things take a dangerous turn when some curling tongs start a fire.