He may be a movie star and a WWE wrestling icon, but Dwayne "The Rock" Johnson is just a loving son at heart.

On Friday (December 30), he revealed an inspiring, intimate story about his father's rocky (no pun intended) childhood. Sharing a photo of the two posing in front of the brand new car Johnson purchased his dad for Christmas, the Moana star described his dad as a "minimalist" who endured brutal teenage years after getting kicked out of his home.

"Crazy story, my dad's dad died when he was 13 [years] old," Johnson wrote. "That Christmas, my dad's mom had her new boyfriend over for Christmas dinner. Her boyfriend got drunk and pissed on the turkey. My dad went outside, got a shovel, drew a line in the snow and said if you cross that line I'll kill you. The drunk crossed it and my dad laid him out cold as a block of ice."

"Cops were called," he continued. "They told my dad's mom that when her boyfriend regains consciousness, he's gonna kill your son so one of them has got to go. In front of the entire family, my dad's mom looked at him and said get out. He was 13...and now homeless."

Johnson added that the after the incident in Nova Scotia, Canada in 1954, his father learned to only need the "bare minimum" survive in life, despite Johnson gifting him with homes and cars in the past.

"Every Christmas, I always think about that story and my dad having every odd stacked against him at 13, but he fought [through] it and still made something of himself. Makes me appreciate his struggle and hard work," the actor went on, adding that his father's enduring strength "made a man outta [him]."

Read his full message and see Johnson's photo with his dad, Rocky Johnson, below:

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