Medical drama Casualty was off air last week due to sport, but our weekly trips to Holby ED will resume this Saturday, as episode 4 of the show’s latest boxset Supply and Demand is broadcasted.

Characters in the spotlight this time are Iain Dean (Michael Stevenson), Rash Masum (Neet Mohan), Jacob Masters (Charles Venn) and Ngozi Okoye (Adesuwa Oni).

Iain’s venture into the world of Hart continues, Ngozi battles her addiction, Rash takes a brave step and Jacob makes a discovery when his son arrives in the ED.

The drama isn’t stopping, so here’s everything you need to know about what’s ahead in the episode.

The drugs story continues

Iain and Teddy’s (Milo Clarke) first day on Hart requires moving a patient called Rhys from a grounded airplane into an EpiShuttle.

There’s been an outbreak of contagious Marburg, so Rhys needs moving from the plane and into an ambulance. It’s a race against time though, as the team hit traffic and Rhys starts to panic.

He claims that he has discomfort in his stomach and in his worried state, he tells Iain and Teddy that he doesn’t want to die alone. Iain, still trying to ignore the phone call he received in the last episode, cannot help but be reminded of his mum in this moment.

Rhys then suffers a seizure and goes into VT. Teddy and Iain know they are at risk of exposure if they treat him, but they don’t have any choice. During this moment, Teddy grows convinced that Rhys does not have Marburg.

As the cover of the EpiShuttle is lifted, it becomes apparent that Rhys is choking on a balloon of drugs. Tim, Iain and Teddy’s boss, then radio’s in and confirms Rhys definitely has Marburg. Feeling worried, Teddy reveals to Tim that PPE protocol has also been breached.

Meanwhile, at the ED, Rhys’ wife Pippa is cornered by the police and she reveals her partner was forced into smuggling drugs.

Later, with Teddy decontaminated and Iain next, Dylan Keogh (William Beck) and the team are getting the other balloons of drugs out of Rhys. Suddenly, one splits, and Iain – who has been exposed – jumps in to start compressions. Faith Cadogan (Kirsty Mitchell) then takes blood from Iain in full PPE. She tells him that she’s glad he’s quite reckless, otherwise he wouldn’t have taken a risk with her.

Aw, romance.