Twenty-eight-year-old Fiona has had to postpone her wedding to deal with a nasty bone cancer in her hip. Georgia has a mysterious lump in her neck and doctors have decided it is best to remove it to find out exactly what it is.

Tonight, Sarina's risky procedures begin to keep her baby alive until doctors can safely deliver her. Also, single dad Garth has an extremely rare disease which affects his lungs and causes recurrent and dangerous bouts of pneumonia.