This article covers a real-world subject which should not be taken as part of the Holby universe.
"Going Under" is the 526th episode of Casualty and the 32nd episode of the 20th series.
Synopsis[]
An optimistic Nina accompanies Ellen to her appointment with the specialist. Selena confides in Maggie as she becomes increasingly concerned about Nathan's preoccupation with her, and the pair sneak into his office, where they find incriminating CCTV footage. Meanwhile, Sam helps the new receptionist settle in.