For the past 13 years since their three-year-old daughter Madeleine disappeared, Kate and Gerry McCann have been through hell and high water.
In 2007, while the family were enjoying a relaxing holiday with friends in Portugal, Madeleine went missing from their hotel room.
Her parents were having dinner at their hotel's tapas restaurant just 55 metres away, and had agreed that one parent would check on their children every 30 minutes.
At 10pm, when Kate McCann went to check on Madeleine and her younger twins, Sean and Amelie, both two at the time, Maddie was gone.
Since then, Kate and Gerry McCann have been named, then cleared, as official suspects in their daughter's disappearance, faced intense media scrutiny and have been forced to make peace with a life in which their daughter is permanently absent.
They're tough circumstances that would test any relationship, so are they still married after all these years?
The couple are both doctors and met in Glasgow in 1993 while they were both working as junior doctors.
After working in obstetrics and gynaecology, Kate became a GP, while Gerry worked in sports medicine, before moving into cardiology.
The pair have been described by friends as "inseparable" during that time, and they married five years after meeting, in 1998.
They had their first child, Madeleine, in 2003 after going through IVF treatment.
The family currently live in Rothley, a small English town in Leicestershire, about 2.5 hours north of London - it's the same house the family has always lived in.
Kate says she has kept Madeleine's bedroom in its original condition, and even buys her presents each birthday and Christmas for her to open, in the event she is ever found.
Keeping their marriage together hasn't always been easy for the McCanns, who are still together after all these years.
In fact, Kate says the couple's relationship nearly broke down shortly after Maddie disappeared, because she withdrew into herself.
In her 2012 autobiography, Madeleine: Our Daughter's Disappearance and the Continuing Search for Her, Kate wrote that she stopped reading, playing music or even having sex with her husband.
The couple were horrified by fears that their daughter had been kidnapped by a sex trafficker, or that a paedophile may have taken her.
Those horrible sexual images impacted their ability to enjoy sex.
"Tortured as I was by these images, it's not surprising that even the thought of sex repulsed me," Kate wrote.
"I worried about Gerry and me. I worried that if I didn't get our sex life on track our whole relationship would break down."
She says if it were not for her husband's kindness and persistence, their marriage would not have survived.
Recalling how supportive Gerry was during the darkest days of their lives, she wrote: "He would put his arm round me, reassuring me and telling me that he loved me."
Kate and Gerry have always denied any involvement in Madeleine's death, and they've vowed to "never give up" hope of finding their daughter.
Kate often visits Praia da Luz, the Portugese resort town where her daughter disappeared.
"I do go back for personal reasons," she told the BBC. "It's obviously the last place we were with Madeleine and I still walk those streets and I guess try and look for answers. It helps me, most of the time."
She says losing her child is the most horrendous experience no parent should have to go through.
"As a parent of an abducted child, I can tell you that it is the most painful and agonising experience you could ever imagine," she wrote on the couple's website.
"My thoughts of the fear, confusion and loss of love and security that my precious daughter has had to endure are unbearable - crippling.
"And yet I am not the victim, Madeleine is. No child should ever have to experience something so terrible."
WATCH BELOW: The trailer for the Netflix doco on Madeleine McCann. Story continues after video.
For now, the McCann's try to live a life as "normal as possible" for their other two children, Sean and Amelie, both 15, despite the fact that the twins have "grown up essentially without Madeleine but knowing their sister is missing and they want her back."
"They [the twins] have their own friends and they keep busy and they're really sporty but their only wish is for their big sister to come home. We miss our complete family of five," Kate told The Sun.
"As a family 98 percent of the time we're busy. I don't know if that's a conscious thing but it helps. The urge to look for Madeleine absolutely hasn't changed at all."