Under-pressure Ethan makes a decision that exposes the weaknesses of the ED.
Ben upsets Will's plans for the future. Heston puts himself in danger to unmask the truth.
Heston decides it is time for a heart to heart with Liam. Ben makes a big announcement.
Heston is a man on a mission, but finding Liam is no bed of roses.
A leaking bullet is poisoning Oliver's brain and must be removed.
Heston is found, but have the drugs he has been force fed caused any serious damage?
Ruhma is forced to report Heston missing when he doesn't come home.
Sister Julienne learns about a new culture as she helps a family at a difficult time.
On the day of her son's trial, Elle finds herself looking after the boy he assaulted.
Ben gets a frosty reception when he tries to make Karen more comfortable at work.
Ben has to deal with the fallout from yesterday, but can he forgive Will?
Heston turns vigilante in his mission to find the viper supplier.
Serena Campbell returns to steady the ship at Holby and Oliver struggles with his identity
Heston tries to get a lead on the viper case by winning the trust of a user.
Emma unwittingly puts herself in danger, but will Ayesha come to her rescue?
A pregnant mum hears a devastating diagnosis. Fred and Violet organise a beauty contest.
Alicia takes matters into her own hands when queuing ambulances put patients in danger.
Heston and Zara clash over a young patient, can they make a diagnosis in time?
It is the dreaded team building day, and there is no easy escape.
Jimmi tries to get over his awkwardness with Ben to help him with an important speech.
Jimmi gets a shock when Will brings home his new love interest.
It's time for Gaskell to live up to his reputation. Nicky tests Sacha's patience.
Heston shadows on an FME shift and witnesses the full horror of Viper for himself.
Lucille faces racism and prejudice when a new mother falls ill.
Dylan's alcoholism spirals out of control while he deals with a stabbing.
A fed-up Jimmi gives Will some home truths. Al works his magic at a stag do.
Valerie is floored by everyone's reaction to her healthy-eating regime.
Ben tries to put his own stamp on the Mill, but one thing stands in his way - Zara.
Hanssen is pushed to the brink. Jac turns to an old friend for support.
Daniel and Zara visit Emma's as a test, while Rob and Heston attend the men's group.
Emma starts to put her plan into action, and Jimmi prepares himself for a night out.
The winter continues, and the team at Nonnatus House welcome their newest midwife.
A schoolteacher faces the consequences of her decision. Ethan goes for his interview.
Valerie continues to push her diet on everyone, while Jimmi puts an idea to Emma.
Mrs Tembe introduces her replacement - and not everyone thinks it is a good idea.
Mrs Tembe loses her temper with an author from Botswana who has a secret.