Iain Dean (Michael Stevenson) receives a life-changing phone call in tomorrow’s (June 28) episode of Casualty, and it will seriously impact his training at Hart.

The beloved character accepted a secondment offer recently, and works alongside Teddy Gowan (Milo Clarke) in a series of training exercises tomorrow. However, when Iain gets that call, his attempt at blocking it out in his mind leads to a disastrous situation in the latest test.

At Holby ED, Ngozi Okoye’s (Adesuwa Oni) alcohol addiction seriously impacts her shift, leading to her making a huge decision about her future.

Also, Rida Amaan (Sarah Seggari) enters the hospital wearing a new uniform, and Flynn Byron (Olly Rix) must attempt to come up with an idea to try and handle the drug-induced patients continuing to enter the ED.

Here’s everything you need to know about the latest episode of Casualty.

Ngozi takes a huge step after another difficult day

Ngozi wakes up in a man’s house following a one night stand. On her way home, she calls son Obi, but he quickly works out that she’s lying to him. Ngozi is then forced to help a young father and daughter Olivia, who has stopped breathing after accidentally ingesting opioids.

Despite being hailed as a hero once Olivia pulls though, Ngozi feels shameful due to how her evening went. Later, Ngozi is asked to look after Joel Sykes, who is suffering from several lacerations after being attacked with a knife. The team have found heroin in Joel’s bag and moments later, he notices that Ngozi is hungover.

Joel remarks that Ngozi looks how he feels, so she snaps back and says that he should feel shame for his involvement in the drug gang. Unbeknownst to her, Dylan Keogh (William Beck) has been watching Ngozi and pulls her aside to be breathalysed. She passes the test, but Dylan is aware that if she took it an hour earlier, things would be very different.

A stressed Ngozi is then told that Obi hasn’t been in school. After clashing with Nicole Piper (Sammy T Dobson), Ngozi finds a cocktail and drinks it in the staffroom. Spiralling even further after making a discovery about Joel, a devastated Ngozi ends up accepting Dylan’s help.

After informing Siobhan Mackenzie (Melanie Hill) about her alcoholism, Ngozi decides to attend an AA meeting.

Iain’s world is turned upside down

At the Hart training centre, Iain praises Teddy to team leader Tim, who isn’t sure whether the young paramedic is capable of what Hart has to offer.

Iain and Teddy take part in a training exercise but afterwards, Iain’s situation changes when he receives a worrying phone call about him being someone’s next of kin. As a result of this call, Iain is terribly distracted in his next test and ends up failing.

Iain is determined to ignore the call which was about Kim, his mum. We learn that she’s been admitted to a hospice due to an alcoholism-related illness. He ponders over whether or not to visit her, and also asks Faith Cadogan (Kirsty Mitchell) if she’d support him if he went to Hart for something more than a secondment.

Faith tells her husband that she’d want Iain to turn down the placement, but would support him regardless.

Rida’s new role

Rida begins her first day as a Band 6 nurse and the entire nursing team are thrilled for her.

As the shift continues, Rida becomes increasingly overwhelmed. She has to deal with requests from Siobhan and Flynn, but also faces resistance from Ngozi and Jodie (Anna Chell). Stepping in, Siobhan reminds Rida that she can put her foot down with the nursing team.

Rida helps Jodie, who is treating a pregnant heroin addict, but with so many other things on her list, she realises something’s got to give. Eventually, after continued backchat from Jodie, Rida marks her authority and sends Jodie into resus.

Flynn makes a mistake

A team meeting his held to discuss the morality rates in light of the growing presence of Class A drugs on Holby’s streets. Flynn suggests stockpiling naloxone, while Dylan believes that the ED could hand out pre-loaded syringes to prevent more and more people coming into the hospital.

Later, Flynn learns that Dylan has gone against him and handed naloxone to a patient. They argue, and Flynn gives his derogatory opinions on addicts.

Dylan tells Flynn that he’s an alcoholic, and Flynn worries that he’s lost his colleague’s respect after his outburst.