For years, the infamous fishing trip involving Bryn and his nephew Jason has been wrapped in secrecy and speculation.
In the long-awaited finale, Gwen delivers a line that reignites the intrigue: “Their trip 30 years ago almost tore this family apart.”
That’s all we know, along with clues that they were on their knees, it was freezing cold, and whatever happened was “completely legal in this country”.
While fans were given a glimpse of the pair’s escapades, in true Gavin and Stacey fashion the secret was never revealed.
But during an event to promote their new book Jones and Corden revealed that a scene shedding light on the mystery was actually filmed.
It featured Bryn clearing out his home when he stumbles upon a camcorder tape labelled “The Fishing Trip”.
Jason walks in, stunned, and asks Bryn why he still has it. He then requests to watch it, but Bryn refuses.
Jones and Corden explained that the idea was for the tape to play and just as viewers brace for the big reveal, the footage fuzzes out and jams.
The scene was dropped in the final edit due to time constraints, ultimately leaving the secret safely tucked away with Bryn, Jason… and Dave Coaches.
As for what really happened? Jones confessed: “I have completely stolen James’s idea for the answer to what happened on the fishing trip. I say ‘I don’t know because I wasn’t there’.”