Charlie Dimmock and the Rich brothers are in Stevenage competing to design a garden for Jenna and Craig and their brand new twins. Confronted with a sloped and mismatched garden, dotted with unsightly manholes, and a £1,000 budget, the trio of designers pull out all the stops to make the garden safe and usable for the twins in years to come. And when it comes to disguising those manholes, the designers have just the solution.