The fifth one precedes the events of the episode "Closing Time", possibly a prequel or deleted scene, though this remains unconfirmed by the BBC.
When Amy Pond (Karen Gillan) answers the TARDIS telephone in the middle of the night, she learns the Doctor carries on a very active social and adventuring life while his companions sleep.
Amy tries to piece together how the fate of the Commonwealth could possibly be affected by the Doctor, an unseen River Song, an unnamed Prince of Wales and the goldfish.
While recalling the event, she suddenly remembers a woman with red hair, dressed in a nightie, who gave her a new ice cream.
The Doctor informs her that her parents, Amy and Rory, are asleep and he is taking her out to Calderon Beta where he intends to show her the sky on the starriest night in the entire history of the universe.
The Doctor also tells her that she will easily be able to break out of the prison whenever she wishes, and explains that the diary he gave her in "Let's Kill Hitler" is to help keep track of their encounters.
This incarnation of River is wearing the vortex manipulator, placing the events after "The Pandorica Opens"/"The Big Bang" from her perspective.
This version of River was expecting to meet the Doctor here, but on seeing an identical gold dress hung by the console, asks why he has bought another.
Unlike the other four episodes, "Up All Night" does not take place in the TARDIS control room, and neither the Doctor nor any of the Williams/Pond family appears.
This episode is a prequel to "Closing Time" by Gareth Roberts, and shows the night spent by Craig Owens (James Corden) before the Doctor pays him a visit.
Craig faces his fears of being a father and caring for young Alfie, while Sophie Benson (Daisy Haggard) prepares for her trip and the lights flicker ominously.
[3] Charlie Jane Anders of io9 thought that the mini-episodes embodied "why we love Steven Moffat's clever-pants dialogue and rapid-fire storytelling".
[5] DVD Talk's John Sinnott named Night and the Doctor as his favourite extra on the DVDs, describing them as "clever and funny and a very welcome addition to the set".