Seven Days - Season 2 - Eps 12: Buried Alive
Parker Backsteps to prevent a mine shaft from exploding and killing thousands of people, including a nearby military base. However, things go awry when the Sphere materializes deep within the Earth and the Backstep team have no idea where Frank is or what he was sent back to avert.
About Seven Days

Title: Seven Days
First Air Date: 1998-10-07
Last Air Date: 2001-05-29
Status: Ended
Rating: 6.8/10 (from 52 votes)
Language: EN
Seasons: 3
Total Episodes: 66
Network: UPN
Genres: Sci-Fi & Fantasy, Drama
Production Companies: Crowe Entertainment
Synopsis
"Ever wish you could live your last week all over again? Well, my name's Frank B. Parker, and I do it all the time. I work for a secret government project experimenting in time travel. When things really get screwed up, I'm the guinea pig they send back to take care of it. The catch is, I can only go back 7 days."
Cast

Jonathan LaPaglia
Frank Parker

Justina Vail Evans
Dr. Olga Vukavitch

Don Franklin
Craig Donovan

Alan Scarfe
Dr. Bradley Talmadge

Nick Searcy
Nathan Ramsey

Norman Lloyd
Dr. Isaac Mentnor