Mystery plot to 'change Summer Bay forever'

Home and Away series producer Cameron Welsh has told viewers to be on the lookout for subtle clues throughout the coming months to help solve a major mystery storyline on the soap.

He promised that the plot, which will span the length of the year, will have fans on the edge of their seats as it builds towards its dramatic climax in December.

Speaking to TV Week, Welsh teased: "It will involve everybody in Summer Bay. Every character in the show is involved in some way.

"The audience will be looking at the characters they love and questioning who they are. Is this person who they seem to be?

"Of all our characters, someone is definitely not who they claim to be and they'll do anything to protect their secrets."

When asked what fans should be on the lookout for, Welsh replied: "The mystery storyline has been happening slowly all year under the surface. Watch out for people such as Derreck (John Atkinson), who show up and then leave with a lot of unanswered questions behind them.

"Also, keep an eye on the new arrivals and ask if they're who they seem to be."

In January, Welsh told TV Week that the unexpected outcome to the story would "change Summer Bay forever".