The hospital holds an emergency drill to see how the staff would cope with a terrorist attack, but tensions within the team prove a barrier to them working well together. Lord Byrne puts Joseph under pressure, prompting the young surgeon to overdose on the drugs he has been taking to control his obsessive compulsive disorder.

Tricia learns her operation has been postponed but is shocked to find out how far Mark will go to get her back on the list. Elliot is forced to confront his grief when James turns up at the hospital wanting answers about Gina's death, and Lola tries to juggle the demands of work with interviews to find a nanny for Leanne. Meanwhile, tension mounts between Ric and Abra over the illegal pig's kidney scheme.

Abra attempts to steal some HIV drugs for a patient and he begins to flirt with Kyla. Joseph returns to work after his overdose and works with Elliot who is grateful for the distraction from Gina's death.

Jac impresses Lord Byrne but alienates Joseph while he is at it. But Jac then tries to charm him when she realises she needs him. Abra's kidney transplant patient returns to Holby.

Mark and Tricia's anticipation of their honeymoon is ruined when a furious Chrissie discovers her mother's cancer has returned and demands to know why she wasn't told. Sam gets emotionally involved in the case of a teenage girl with hepatitis C whose parents seem to know little about her medical history, and Matt struggles to fight his growing attraction to patient Nikki

Mark and Chrissie keep a vigil at Tricia's bedside but Diane has bad news for them. Sam attempts to find the truth about Jade when he finds her medical notes are wrong. Lola almost catches Matt with Nikki and he panics.

Enigmatic new consultant Dan Clifford turns up at the hospital and examines the kidney transplant case, while a worried Abra covers his tracks. Elliot is forced to finally confront his demons over Gina's death and Connie reveals she is pregnant to a stunned Sam.

Abra is trying to cover his tracks over the kidney transplant, but Dan makes a discovery which jeopardizes Abra's career even more. Dan suspects that Jac wound up his ex. Connie reveals the father of the baby, shocking Sam while Mark drowns his sorrows.

Dean questions Matt's decision over his relationship with Nikki, giving Matt cold feet. Elliot keeps his feelings over Gina's death to himself. Leanne's father Steve arrives asking for Lola to hand his daughter back, but Lola isn't sure he is telling the truth about giving up drugs.