Jordan says he's wanted to make a series of this kind for some time, where the young characters grow up in a world where their decisions can quite literally mean life or death.
"It's amazing to think of the responsibility these kids have," he says.
"We all trust them with the lives of our children, our parents and our loved ones, yet underneath their scrubs they are still young men and women who are in the process of growing into adults themselves," he adds.
"It's a rite of passage, where the lessons they learn as they do their job, forge the kind of adults they become."
Crash begins on Wednesday 9 September at 8.30pm on BBC One Wales and BBC HD - see it on the BBC iPlayer
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