Joan, who's 80, has severe pain in her chest, arm and jaw. Consultant Sarah is concerned that Joan's heart is struggling and requests an urgent blood test and heart trace. Joan's daughters Sarah and Sue talk about how their parents were only 16 when they first met at a local dance, how they were together ever since, how they would hold hands in bed every night, and how Joan lost her husband - and they lost their father - just six months ago. Roofer Mark, who's 54, has fallen 10 feet off a ladder. Doctors are concerned that the impact may have broken bones in his pelvis and spine. Mark's wife Sarah talks about the 11-year age gap in their relationship, and how she proposed to him and they were engaged on her 18th birthday.