Just another regular night shift at St Joan’s. Dr Whom and Nurse Fielding are attempting to answer that existential question: where can you get a decent meal at 4am?

Clive is conducting another of his ‘urban twitches’, Baz and Terry engage in conversation, and Dave goes to see his doctor with a bad headache.

Meanwhile, we take a trip to the Forest of Codeine to see if Derek can save Deborah the Zebra (she is a Zebra, right?) and Dave goes to see his Doctor with a bad headache.

It’s time for another ride in the 4amcab.

Oh, and Mairead has a date. Watch out.