Oren Williams

When young patrolman Coop's body was found under a bridge in a bad neighborhood in 1968, the theories ranged from revenge to a gang killing to a jealous lover.But Rush's investigation uncovers a secret about Coop that may have motivated someone entirely unexpected to murder him.

In 1989, a homely 33-year-old woman was gunned down in an alley. Now, the unsolved murder case is reopened when a tape of the victim, made for a dating service, is found after a man's suicide. Apparently, the man was watching the tape when he killed himself.

Rush and Scotty reopen a 1998 accidental death case. The investigators enter the picture-perfect world of the wealthy Williams clan but soon discover that no family is perfect. Lauren Williams, was stranded at her ex-husband's home. when morning came, she was found face down in the swimming pool, and it was deemed an accidental death at the time.

Landing in San Francisco, the Sliders are amazed to find the city in ruins; not due to a Kromagg attack, but to complete abandonment. They discover that everyone has disappeared. However, Quinn soon realizes that animals are still inhabiting this earth when he is attacked by mongrels. Maggie scares the dogs off with the help of a shotgun she finds in a pawn shop, and the Sliders head to Quinn's home. They find it empty like everywhere else. The difference: apparently the Quinn of this world was even more intelligent, garnering award after award. While Quinn continues to search the house, Rembrandt and Maggie wait outside -- and are approached by the disheveled Quinn of this world. At first frantic -- he has been totally alone -- he calms down enough to explain that he built a machine that, when he threw the switch, wiped out every human being on Earth.