Casualty finally reveals Flynn Byron’s deadly secret in early iPlayer release

Casualty spoilers follow for Saturday’s (6 June) episode, which hasn’t yet aired on TV and is available to watch now on BBC iPlayer. This article has storyline details that some viewers may prefer to avoid, and also contains discussion of topics including suicide.

Casualty has finally revealed the deadly secret from Flynn Byron’s past, which explains his mysterious and fractured relationship with his former military trainer, Colonel Jack Bard.

In the current boxset, ‘Lethal Legacy’, the clinical lead has become concerned about the welfare of one of Bard’s soldiers, Rory Dickson. After noticing several injuries on the young man, Flynn has reached out to Rory several times, but has been silenced by Bard each time.

In today’s episode, Flynn rushes to hospital in the middle of the night to see Rory, who was brought in after being found drunk on a busy road. Rory has a mental health assessment before being released, but Flynn is convinced that he was at risk of harming himself.

Flynn asks Rory to stick around so he can patch him up in his office – and it is then that Rory admits that he is being bullied by Bard, disclosing various horrific incidents that he has experienced at the barracks.

After Flynn secures Rory a place at a recuperation facility, the soldier vanishes. A packet of drugs is also missing, and Flynn heads out fearing the worst. Thankfully, Stevie finds the medication in the hospital.

However, Flynn later gets a call to say that Rory is in a critical condition after being hit by a car. Flynn rushes back to the ED to find Rory in cardiac arrest, but against all odds, manages to restart his heart.

Deeply affected by the events of the day, Flynn goes out for a drink with Stevie on the canal. The pair have an honest chat about Stevie’s current struggles, then head to a bar to shelter from the rain.

Flynn tells Stevie that he started basic military training at the age of 17 with a boy called Adam, whose name was mentioned earlier in the boxset. Adam was also bullied by Bard, and his ordeal led him to take his own life.

Afterwards, Flynn signed a statement out of fear saying that Bard had nothing to do with Adam’s death. In an emotional moment, he explains that his fight to get justice for Rory is partly to make up for his past regrets.

Stevie sends Matty a text to end their secret fling, and she continues to drink with Flynn. He initially decides against sharing a taxi with Stevie, but as he starts walking in the rain, he realises that he wants to be with her.

Flynn rushes back to the bar, but is gutted to realise that he is too late as Stevie had already left in a taxi mere seconds earlie