Episode 4.6

After vivid encounters with a new giant-space-tardigrade-and-mushroom-ley-line replacement for the warp drive, the psychotic evil twin of his beloved mentor holidaying from a mirror universe, and a dimly glimpsed ‘angel’ who might have been his old school caretaker, Mr Jenkins, or might have been himself back from the future (things got a bit muddled), Alan wakes in the shower to find it all a dream.

Well of course it was! No one would have believed any of that.

He will never mention any of it again.