Overview
A couple hires a professional digger (underground structure explorer) to help them find their friends, who mysteriously disappeared in the subway.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 22 | 31 | |
 | 25 | 34 | |
 | 24 | 33 | |
 | - | - | |
 | 35 | 44 | |
 | 41 | 50 | |
 | 26 | 35 | |
| 36 | November 14, 2015 (35) | |
 | 27 | 36 | |
 | 35 | 44 |