David tracks down his estranged wife, Kate, to get her help in saving their 10-year-old son who is dying of leukaemia. Meanwhile, Zoe has had to go home sick, leaving Ash to deal with the continuing flu epidemic.
| Creator | Jeremy Brock |
|---|---|
| Actor | William Beck, Elinor Lawless, Neet Mohan |
| Country | United Kingdom |
| Production | BBC |