Christmas is supposed to be a time for family, friends and festivities. But for thousands of people, Christmas is spent living rough – either in a hostel or on the streets. Singer and broadcaster Charlotte Church explores homelessness this Christmas in her native Cardiff. She meets the people who donate their time and energies to feeding and helping the most vulnerable in society, as well as hearing stories from some of the thousands of people who find themselves without shelter this winter. Charlotte sees the difficult reality of life on the streets, but also witnesses the power of music to give voice to those with no place to call home.