John Palmer's life will hang in the balance on Home and Away as he suffers a brain injury in dramatic scenes.
The frightening moment takes place on what should be a romantic day for the Summer Bay favourite, as his wife Marilyn (Emily Symons) takes him out for a surprise boat trip and picnic lunch.
With this being Home and Away, though, it was never going to pass by peacefully without some incident or another, was it?
The drama kicks off when John tries to leap over a rail to board the boat, keen to impress Marilyn with a reminder of his navy days.
John Palmer and Marilyn Chambers in Home and Away
© Channel 5
Sadly for John, he isn't quite as athletic as he used to be, so he ends up falling and banging his head on the bottom of the boat.
Shane Withington, who plays John, told TV Week: "Marilyn takes him on a boat, thinking he'll enjoy it because of his navy background.
"He says to Marilyn: 'Let me show you how we do things in the navy'. But as he leaps over the rail to get on the boat, he mistimes things and hits his head on the bottom of the boat."
Although John seems fine once he regains consciousness, he agrees to get himself checked out at the hospital as a precaution.
John Palmer in Home and Away
© Channel 5
This turns out to be a wise move, as doctor Nate Cooper warns that John has a bleed on the brain as a result of his accident and it could be fatal.
As Marilyn despairs, what does the future hold for her and John?
Home and Away airs these scenes next week in Australia and early November on Channel 5 in the UK.
Digital Spy