The truth is out there, as they used to say on one of my favorite shows... The X-Files.

Helix Season 1 Episode 10 revealed the mystery behind all of Helix is immortality. And not just one or two immortals but five hundred.

These silver-eyed immortals run the Ilaria Corporation and will stop at nothing to acquire the Narvik virus.

Meanwhile, Sarah's condition has taken a turn for the worse and supposedly only Julia can save her. How exactly did Julia join the silver-eyed club and does this mean that she is now immortal?

This is one episode you're going to want to see again. Watch Helix online right here at TV Fanatic:

Watch Helix Season 1 Episode 10 Online