Professional property hunters Kirstie Allsopp and Phil Spencer are on a mission; to secure the best possible property for the most competitive price, helping buyers through the murky world of agencies and viewings, in a bid to find their perfect home. Jonathan Neech and Lucy Kemp are living rent-free - but on a busy road, up five flights of stairs and with no garden; not ideal with two young children. They're desperate to buy a more suitable home, but can they reconcile their different priorities?