Oubliette

"Oubliette" is the fifth episode of Season 2 of Helix. It originally aired on February 13th, 2015 (10:00PM EST) on Syfy in the US, and on Showcase in Canada.

Synopsis
''Determined to get answers from his brother, Peter reveals to Brother Michael that "Jerome" is actually Alan. Michael responds by imprisoning the both of them in an oubliette. Sarah is nursed back to health by Sister Agnes, who discovers her immortality.''

Episode Overview
To be Added

Clues

 * Kyle is shown to be a spy of some sort.
 * The back of the katana is shown - inscribed with そ, な, ち, and き in triplets:
 * そそな ちきち きなな きちそ なきち そちそ きそち きそち ちきそ きそち そそな きちき

Production Notes
To be Added