An aspiring but adrift teen singer goes to live with her grandmother, once a country music legend, but has fallen on hard times after the death of her husband five years earlier. Together, they overcome adversity and find redemption through their love of music.

The one-hour television event takes viewers on a musical journey filled with joy, heart, and laughter as the acapella group performs some of their holiday favorites. Special guests include Jennifer Hudson, Brett Eldredge, ventriloquist Darci Lynne Farmer, and Jay Leno.