Casualty spoilers follow.
It's Connie's final episode on Casualty next week, as a shocking incident with Grace prompts her to reevaluate her future. Meanwhile, Rash's past is revisited and Jade is suspicious of newcomer Tina.
Here's a full collection of the seven biggest moments to watch out for:
1. Ollie has a terrifying accident
Ollie is still trying to impress Grace as they spend the day together in some woodlands.
With Grace distracted on her phone, Ollie tries to hold her attention by throwing sweets in the air catching them in his mouth.
However, when one suddenly lodges in Ollie's throat, Grace's jokey scepticism turns to horror as she realises that he can't breathe.
2. Grace makes a terrible mistake
A frantic Grace desperately performs chest compressions on Ollie while on the phone to the control centre, but fears it isn't enough. With Ollie still not responding, Grace hangs up on them and takes matters into her own hands.
After grabbing a knife and straw from Ollie's picnic supplies, Grace replays a video online, as she nervously cuts into Ollie's neck – performing a makeshift 'cricothyroidotomy'. To her overwhelming relief, this enables Ollie to breathe again, but it's clear that Grace could have done further irreparable damage.
3. David faces an anxious wait
David's world falls apart when he sees his son come into the ED, but Connie does everything she can to save Ollie.
Once he's stabilised, an uncomfortable Connie defends Grace's actions in the face of a furious Rosa.
Knowing she needs to be honest with them, Connie is forced to explain that Ollie is at risk of brain damage thanks to Grace's risky procedure. However, they won't know for sure for another 24 hours.
4. Connie struggles with Grace's behaviour
As Grace tries to justify her actions to her mum, Connie is furious and loses her temper.
With Grace refusing to take responsibility for what happened, Connie angrily explains that Ollie may have brain damage because she stopped chest compressions to do a dangerous procedure she wasn't qualified for.
Reeling from her showdown with Grace, Connie opens up to Charlie – who immediately spots the similarities between mother and daughter.
5. Rash makes a big discovery
Rash is shocked to find his dad Ashok in the ED with his mother's best friend – and it doesn't take him wrong to clock that there's more to their relationship than meets the eye.
Needing advice, Rash turns to Ethan – who encourages him to have an honest conversation with his father.
Taking Ethan's words on board, Rash tells Ashok that he knows about his new relationship and is fine about it. As Ethan predicted, Ashok admits that he was terrified of telling Rash, in case it implied that he had stopped loving Rash's mother – who passed away a few years ago.
6. Jade is suspicious of Tina
As Tina continues to familiarise with the ED, Jade can't help but express her suspicions over her new colleague's never-ending positivity.
However, when Jade encounters a difficult situation with a patient, Tina jumps in and defends her. Going one step further, Tina offers her support afterwards and assures a shaken Jade that she is a great nurse.
Realising that Tina really is as supportive as she seems, Jade admits that her first impressions were wrong, and the pair become firm friends.
7. Connie tells Grace her darkest secret
Following pep talks with both Charlie and Jacob, Connie vows to make amends with her daughter, but is devastated to realise it might be too late.
After learning that Grace is heading back to America, Connie races to the train station, where she opens up about her darkest secret. Connie explains to Grace that she is a recovering addict – highlighting one of the reasons she's so harsh on her daughter.
When Grace starts to thaw towards her mum, Connie encourages her to face up to what happened with Ollie and they head back to the hospital together to speak to David.
It's already been confirmed that Amanda Mealing is taking an extended break from her role as Connie, with next week's episode being her last.
Casualty airs these scenes on Saturday, April 3 on BBC One.
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