At 21-months, she suffered through one of life's toughest challenges that no one, let alone a child, should ever have to face.
The toddler was diagnosed with stage four neuroblastoma when she was nearly 5-months-old.
But Molly is a fighter, and her 15-month-long battle with cancer finally came to an end with the best news.
Molly's mother Chelsea Hughes from Warren County, Kentucky told NBC 12 how she responded upon hearing excellent news.
After five rounds of chemotherapy, her daughter is cancer-free.
"I kind of just fell to the ground after I got off the phone, and I just hugged for her like five minutes."
After spending 130 days in the hospital enduring chemo and radiation treatments, Molly will now be able to enjoy playing outside just like other toddlers.
Hughes recounted the nightmare she never saw coming when she discovered Molly's diagnosis.
She told Fox 35:
"We had no idea she even possibly had cancer. After the CT scan, they found a softball size tumor in her abdomen."
Cancer treatments began right away before Molly learned how to walk.
"She went through 5 rounds of chemo, surgery, 2 stem cell transplants , 12 days of radiation and 6 rounds of immunotherapy. It was the worst year and a half of our lives."
Hughes described how much the family's world changed after the diagnosis in a Facebook post.
It reads:
"Once your child is diagnosed with cancer, your whole world is changed. You are immersed into a world you know nothing about. You suddenly accept a job you never even applied for. You do it for as long and as hard as you have to. You never give up, ever!"
"All you want is for your child to be pain free, to feel good, and to be able to go back to normal life. But it won't be your old normal. It will be your new normal."
"Your new and only goal is to make sure your child gets to live another day. Childhood cancer changes everything."
Molly's stamina was so evident, she was given the phrase "Molly Strong."
"She would just bounce back after every treatment. I mean, it would knock her down for a few days, but then she'd be up playing."
Molly Strong's resilience stems from her love for life.
"I believe that's what's helped her get through is all the prayers she's had, and we just can't thank everybody enough for praying for her and supporting us through all of this," said Hughes.
Molly's family announced her victory in a Facebook post. "OH HAPPY DAY!!!!" she wrote.
"Molly has some BIG news to share!!! Her scans were clear & showed no evidence of disease!! (NED!!!) There is NO active cancer left in her little body!!"
Facebook showered Molly with a lot of love over the happy outcome.
Chelsea Hughes/Facebook
Chelsea Hughes/Facebook
Chelsea Hughes/Facebook
Some sent continuous prayers, and another shared his relatable story and cried tears of joy knowing Molly will have a chance at a normal life.
Chelsea Hughes/Facebook
Chelsea Hughes/Facebook
Chelsea Hughes/Facebook
Today, Molly is in the clear. As a result of the treatment, however, she did lose partial hearing and will return to the hospital where she will be starting a new trial drug for two years to prevent a relapse.
Molly's determination and will is an inspiration to all of us who get knocked down by life's many tough challenges. You just get up, fight, and keep your eyes on the playground.