In a twist that no one saw coming, Home and Away favourite Dana Matheson (Ally Harris) is set to make a tearful exit from Summer Bay — and it all comes down to one devastating secret involving Sonny and “that person” everyone’s been whispering about.

After months of simmering tension, viewers will finally see Dana’s world come crashing down when she discovers the shocking truth Sonny has been hiding. Sources close to the production tell TV WEEK that the revelation “changes everything” for Dana, who has fought so hard to rebuild her life in the Bay after her troubled past.

“Dana thought she’d finally found peace — and love — but this betrayal is the final straw,” an insider reveals. “She’s completely blindsided. What Sonny’s been hiding is unforgivable.”

While producers are keeping the details of Sonny’s secret tightly under wraps, speculation is rife that it involves someone close to both of them — “that person” whose sudden reappearance has already sent shockwaves through the community. Whether it’s an affair, a lie from the past, or a betrayal of trust, Dana’s reaction makes it clear: there’s no going back.

In emotional scenes set to air next month, Dana confronts Sonny in a powerful showdown that fans are already calling one of the year’s most heartbreaking episodes. As the truth unfolds, Dana’s heartbreak turns to resolve. She makes the gut-wrenching decision to leave Summer Bay behind — and start over somewhere new.

“She realises she can’t heal while she’s surrounded by reminders of what she’s lost,” the source continues. “Leaving is her only way forward.”

The departure marks the end of an intense chapter for Ally Harris, who joined the show last year to widespread praise. Her portrayal of Dana — a woman torn between love, loyalty, and redemption — has earned her a dedicated fanbase and critical acclaim.

Fans have already taken to social media to express their sadness over her reported exit, with many pleading for producers to find a way to bring Dana back in the future. “She’s been through so much — she deserves a happy ending,” one fan wrote.

But could this really be the end for Dana Matheson? Insiders hint that her exit might not be permanent. “In Home and Away, nobody ever truly leaves the Bay forever,” one teased. “There’s always a chance for redemption — and return.”

As Sonny faces the fallout of his secret being exposed and “that person” tries to make amends, the emotional ripples of Dana’s departure will be felt for weeks to come. One thing’s for sure — the residents of Summer Bay won’t be the same without her.

Stay tuned: the truth, the heartbreak, and the goodbye you didn’t see coming are about to hit the Bay like a tidal wave.