A life of poverty in a cramped pit cottage is all that 17-year-old Ruby Dinsdale has known. Even with her father and younger brother working at the coal mine, money is tight. Her mother Mary is skilled at stretching what little they have, but the small contribution Ruby makes from her job at the local pub makes all the difference. So when Ruby is sacked, and Mary becomes pregnant again, the family's challenges are greater than ever. When charming miner Gordon begins to court Ruby it seems as though happiness is on the horizon, until she uncovers a deeper betrayal than she could ever have imagined. But although the Dinsdales are materially poor, they are rich in love, friendship and determination - all qualities that they will draw on to get them through whatever lies ahead.