In what Jeff Probst called the "scariest moment on 19 seasons" of 'Survivor,' contestant Russell Swan collapsed twice and appeared to be on the brink of death. He was the second 'Survivor: Samoa' player after Mike Borassi to be medically evacuated.

After the Galu tribe leader blacked out, Probst declared, "This challenge is over, neither tribe wins reward" -- making it the first time in 'Survivor' history that a challenge was unfinished. And though both teams were sent to tribal council to vote someone off, Probst informed them that everybody would be safe -- this week.

Watch Russell's injury moment from TV's Top 5! after the jump ...