Urban Exploration. The practice of investigating areas not designed for public use. But strange things can happen in the dark, closed-off areas of history beneath the streets of Moscow, and what started as a way for Nate to escape his grief quickly turns into a journey that forces him to confront it head-on, with nothing less than his eternal destiny hanging in the balance.

When Sunny and Tom are reunited shortly before their respective weddings, the former lovers realize how much they still love each other. The pair must decide whether to turn their backs on the safe and sensible futures they had planned for themselves.