Zosia attempts to demonstrate that she is able to perform on the wards, despite being on medication. But when her friend from the psyche unit, Lisa, arrives at the hospital, she convinces Zosia to stop taking her lithium tablets. Zosia begins treating a male patient, but misses vital signs and misdiagnoses him. Lisa begins hyperventilating in reception, requiring treatment from Jesse, but when she reveals she is faking her symptoms, Jesse discharges her – unaware of her unstable condition. Serena clashes with Angus Farrell, a chairman from the hospital board determined to introduce vicious cost-cutting proposals.