Marilyn is heartbroken to find out John is the arsonist... but so is John.
Ash finds out John is the arsonist and he wants answers.
Zac forsakes his vows, and cheats on Leah.
"Old man Marty. Marty. I can hear her saying it now."
Summer Bay mourns and remembers Billie at her funeral service as a stranger watches from afar.
Billie's nearest and dearest come together for a very special send-off. John and Marilyn are devastated as the truth of the Summer Bay firebug explodes.
There's love trouble in the Bay when Zac and Leah's marriage and Tori and Riley grapple with a cheating past... and present? Watch this exclusive sneak peek!
Tessa has a special goodbye message for all the Billie fans out there.
Tori and Riley start seeing each other again. Hunter and Olivia share a moment. Justin fights for Ava. John tries to light more fires.
Nate's career is on the line after he's accused of negligence.