Christian McCaffrey was home in Colorado and went out for a standard hike with two of his brothers and a buddy back in March.
That's when the Panthers running back's life took a sudden turn.
He witnessed 72-year-old Dan Smoker Sr. tumble off the side of a cliff and fall, almost certainly to his death.
It turned out he wasn't dead, but Smoker was in big trouble, with a raft of internal injuries.
McCaffrey called 911 and his buddy and brother helped attend to Smoker and his 13-year-old grandson, who had also been along for the hike.
Eleven minutes later paramedics arrived on the scene.
After five and a half weeks in the hospital, Smoker has now recovered and the families have kept in touch.
In fact, at McCaffrey's invite, the Smokers will attend a Panthers game this season in Charlotte.
Monday, McCaffrey spoke at length about the incident and how it's impacted his life.