Kate has been through the fire with her three children. Having been left devastated and homeless after her husband's affair somehow she has pulled through. Though times are still tough, she's beginning to see the start of a new life. But when 12-year-old Jessica is diagnosed with cancer, Kate's resilience is put to the ultimate test. She has an 18-year-old son consumed with hatred of his father, a 7-year-old who is acting up and an ex-husband who won't face up to his responsibilities. Kate knows she must put to one side her own fear and heartbreak and do right by her children, particularly Jessica. But maybe doing the right thing means doing the unthinkable?