In this edition, Alan heads to Banbury to surprise two young carers - 12-year-old Claudia and nine-year-old Leonie - who look after their mother Donna when her husband Lee is working. Donna lost about 70 per cent of her sight after a heart attack, which has left her with severe tunnel vision aggravated by low lighting conditions in their dark cramped house, while their lumpy featureless yard offers little respite. Alan and his team - architect Helen Sisley, builder Kunle Barker and gardener Katie Rushworth - transform the family's indoor and outdoor spaces into bright usable spaces, with astounding results.

In episode two, Alan travels to Eltham, South London to meet Manisha and Rajeev Seesurrun. Their son Aryan was born in 2007 and almost immediately, his health became a huge concern. Aryan was starved of oxygen at birth and has been left with severe cerebral palsy as a result. He requires 24 hour care, so Manisha has given up her job and her dreams of becoming a designer to care for him full time, while Rajeev works long hours to support the family.

This week Alan Titchmarsh is in Chester transforming not just the garden but the house too – for retired couple Richard and Ann Price.