A rare heart condition caused Humberto Barraza to flatline three times. His classmates rushed to save his life ...

This is the raw and emotional journey of six individuals from hospital beds to the finish line of one of the world’s most grueling endurance events, the IRONMAN triathlon.

Flatline's first appearance — which includes her literally ripping Damian's heart from his chest — takes place in Robin #1 by Williamson and Melnikov. At the end of Robin, Damian claimed to ...