The bus crash at Tony Hutchinson and Cindy Cunningham's wedding is set to have a huge impact on the show, with rumours that the accident will lead to the deaths of two characters.
Moss, who plays wedding guest Rhys Ashworth, told MSN that the challenging shoot led to the cast coming together, noting: "That week we had the worst weather that we've had for ages. It rained most of the day and we were outside all the time.
"At most points I'm laying on the floor outside, in the rain, so I lay there pretty much for two days.
"So all the cast rallied around and we all looked after each other. If someone's on the floor we'll make sure they're comfortable, so one of your mates will go and get you a brew or whatever. It was a proper team effort and we all pulled together."
He also revealed that producers are hard at work keeping details of the crash outcome hidden from fans, explaining: "It's the biggest stunt that I think Hollyoaks have ever done and we've all pulled together to make it the best. It's shocking!
"People still don't know the full story of what's going to happen - they're still making changes to it now, so it's super secret and super exciting."
The dramatic scenes air on the soap all next week from November 12.