Summer Bay is about to be rocked by one of its most emotional and explosive storylines yet, as Home and Away fans brace for a heart-stopping twist that will change Jo’s life forever.

In a scene packed with tension, heartbreak, and pure disbelief, Jo collapses to the ground clutching a set of DNA test papers — papers that reveal a truth so devastating,

it threatens to destroy everything she thought she knew about her family.

For weeks, viewers have watched Jo wrestle with growing suspicions about her past. Whispers of secrets, half-truths, and inconsistencies in her family’s story have been eating away at her. But this week, the truth finally explodes into the open in a way no one saw coming. After secretly sending off a DNA test to confirm a nagging doubt, Jo receives the envelope that will shatter her world.

At first, she hesitates to open it. The paper trembles in her hands as she sits alone in her bedroom, the memories of her late mother Christina flashing through her mind. Everything about her childhood — every story, every family photo, every word her father David told her — suddenly feels uncertain. When she finally tears the envelope open and reads the results, her knees buckle beneath her.

“She can’t breathe, she can’t move — it’s as if the ground has been ripped out from under her,” a set insider teased. “This moment is going to leave fans absolutely speechless.”

The DNA results confirm Jo’s worst fears: David isn’t her biological father. The man who raised her, who protected her after the crash that killed her mother, has been hiding a shocking truth for years. The revelation explains so much of the tension between David and her sister Lacey — but it also opens up a new mystery: if David isn’t her real father, then who is?

As Jo lies unconscious on the floor, clutching the crumpled papers, it’s Lacey who discovers her and frantically calls for help. “It’s an incredibly emotional moment between the sisters,” says the insider. “Lacey’s been angry at Jo for months, but when she finds her like that, everything changes. It’s pure, raw family drama.”

The aftermath of Jo’s collapse will send shockwaves through Summer Bay. David rushes to the hospital, desperate to explain, but the damage is done. The truth threatens to destroy his relationship with both daughters. Meanwhile, speculation runs wild about the identity of Jo’s real father. Could it be someone already living in the Bay? Or is this the beginning of another long-buried secret coming to light?

Producers promise that this storyline is just the beginning of a much larger arc that will redefine the family dynamic. “This is Home and Away at its most powerful,” the insider says. “A single secret that’s been buried for decades is about to blow up in everyone’s faces — and no one will be the same again.”