Casualty Series 18: Episode Guide & Ratings

The consequences of the train crash begin to hit home. Comfort struggles to come to terms with what has happened. And Jim warns Nikki not to get involved with Paul.

Comfort is disgusted when female members of staff strike raunchy poses for a charity calendar, and Tally works out that Harry has been self-prescribing.

Harry's attempt to kiss Lara at the calendar launch backfires, Comfort is led astray by a friend out for a good time, and Roxy confesses to being a surrogate mother.

Jim whisks Nikki away for a cosy weekend at his remote country house, Bex drowns her sorrows in wine and cigarettes, and Charlie's son finally responds to treatment.

I Got It Bad and That Ain't Good: Luke feels responsible for a man's death at an Army barracks, while the love triangle between Baz, Dan and Charlie reaches a dramatic climax.

Lara dives underwater to save Simon, Fin sends Comfort home drunk and Jim struggles to keep order when the hospital is besieged by patients.

Valentine's Day proves traumatic for the staff at Holby A&E, as Nikki tries to decide what to do about her pregnancy, and Comfort and Fin struggle to handle their break-up.

The attraction between Simon and Lara proves too strong to resist, Roxy tries to stop Nikki going ahead with the termination and Comfort misses her counselling session.

Roxy goes into premature labour, causing Nikki to put her grievances aside to help deliver the baby in the back of her car.

Roxy gives her baby away, but the new parents are far from happy with the bundle of joy. Comfort prepares for her last day, and Tally manipulates her father.

Tally hits rock bottom after Harry suspends her and Simon tells her she was his biggest mistake, while Roxy faces heartbreak when the surrogate parents want the baby.

Abs is attacked by a man who blames him for the death of his child, while Harry realises he has been neglecting Tally and suggests they take a holiday together.

Harry's return to work prompts Charlie to draft his resignation letter, Fin and Comfort enjoy a romantic picnic, while Nikki and Lara are taken hostage.

Nikki's slow recovery from the fall is set back by devastating news, Luke reluctantly attends the inquest, and Kate insists Greg's death was his fault.

New paramedic Nina makes a bad impression, Josh's date with Caroline turns out to be an unmitigated disaster, and Lara is forced to take desperate measures.

Nina annoys the rest of her team by playing the heroine. Simon is summoned to see Harry, Caroline pulls away from Josh, and Bex is on cloud nine.

Tess treats a woman who has been severely beaten, and attempts to find out how she came by her injuries, while Simon and Lara celebrate their stag and hen nights.

Lara's big day is put in jeopardy when Abs makes a shocking discovery and the plane taking Simon to the wedding crashes and explodes.