Emmerdale airs upsetting news for teen Sarah Sugden next week, just days after she suffers a worrying collapse.
The character has been increasingly concerned for her health in recent weeks, following the death of 18-year-old Leanna Cavanagh.
This, and her great-grandmother Faith Dingle's own health concerns, has panicked her about how long she might have to live.
Leanna's grieving father Liam's comment about fate deciding when it's your time to die leaves her in a state, and as she rushes home she collapses.
In the fallout of the incident, Sarah opens up to her family about her fears - as well as her hopes to find the family of her heart donor.
But next week, she's left gutted when she finds out the family do not want to see or speak to her at all.
Sarah has suffered with her health since she was a child, battling a series of illnesses that have left her wanting to live life to the full.
In 2011, six-year-old Sarah was diagnosed with a rare genetic disease called Fanconi anaemia, and she needed a bone marrow transplant to save her life.
Debbie and Andy decided they needed to have another baby, as neither of them or their family members were a match for Sarah.
Later in the year, Sarah took a turn for the worse and began developing leukaemia. Jack was born that same month, and he proved to be a match.
In 2017, Sarah was revealed to have throat cancer. After a crowdfunding campaign and help from Debbie's grandmother Faith Dingle, Sarah received treatment in Prague.
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A year later she suddenly collapsed and was confirmed to be suffering from heart failure, as a side effect of chemotherapy.
While waiting for a transplant, a hospitalised Sarah suffered from a virus but eventually a transplant was found for her and she underwent surgery.
There were some complications after the heart didn't initially work as well as it should, but the medication soon stabilised her.
Sarah has spent most of her life in hospital or sheltering because of her illness, and she fears she won't live a long life as a result of what she has been through.
Leanna's death is a stark reminder for her that life is short, and she becomes desperate to locate the family of the person who saved her life.
So when they refuse to make contact she's left completely crushed, but refuses to give up.
Her uncle Noah Dingle realises what she is up to as she tries other means of tracking down the family of her heart donor.
She pleads with Noah not to tell anyone, especially her grandmother Charity, but will he betray her?
Emmerdale airs every night at 7pm on ITV, with an extra episode at 8pm on Thursdays.
