"What Lies Beneath" is the 1001st episode of Casualty and the 40th episode of the 30th series. It was preceded by "History Repeating" and will be followed by "Where the Truth Lies". The episode was directed by Sean Glynn and written by Dominique Moloney.
Jacob shows some uncharacteristic nerves as he gives a presentation on his 'gun-shot wound' policy to the heads of trusts.
Connie goes with him, but on the way, they come across a man stuck in a drain and work together to save him. They turn up to the presentation late and soaking wet, but Jacob eventually gives his presentation with Connie's support.
Rita turns up to work with a black eye after she attempts to hide from Iain behind a car and bangs her eye on the wing mirror, and when Iain assumes it was Mark's doing, she doesn’t deny it and gets caught up in her own lies.
Robyn is completely loved up and gets some flowers sent to work from Glen, while Max and Dylan play chess and become unlikely friends.
It will be the final episode to feature scenes shown in the summer trailer released in March 2016. The scenes shown which involved Jacob jumping into a lagoon were largely anticipated by fans. A similar thing occurred with the spring trailer which included scenes showing Connie being held hostage. They were scenes which had been awaited by fans, but also aired in the latest episode. Template:Series 30