25 miles from Flinders Street at the Epping Rail Depot, staff are prepping the train fleet.

We're doing an after-morning peak clean.

We'll get all these trains cleaned and inspected before it goes out for the evening peak.

And that happens every day, seven days a week, public holidays, every week.

Mick's grown up on the railway.

I've actually been in the rail longer than I've known my wife.

Yeah, I started 17 years old, I was.

Always doing the cleaning.