Watch “Nancy Grace Mysteries: Brittanee Drexel,” Friday at 8 & 11 p.m. ET on HLN.
A 17-year-old high school junior -- described by friends and family as a model student and avid soccer player -- vanishes into thin air on spring break in Myrtle Beach. Grainy surveillance video emerges capturing the teen girl arriving at a resort then leaving 10 minutes later. What happened to Brittanee Drexel after that remains a mystery. Four years later, will we ever find out what happened to Brittanee Drexel?