Earth Prime is the earth that Quinn Mallory, Wade Welles, Maximillian Arturo, and Rembrandt Brown first depart from in Season 1, although it is revealed in Season 4's Genesis that Quinn was not born on this world.
The series revolves around these original four Sliders' quest to return to Earth Prime.
Returning to Earth Prime[]
- In Into the Mystic, they encounter Quinn's double who is able to send them home. On their arrival, they learn that they have seconds to decide if this is in fact their home world. The decision rests on the squeaky gate at Quinn's house. When it doesn't squeak, the Sliders believe that they have not found their home and slide away.
- In Post Traumatic Slide Syndrome, Rembrandt and Wade are convinced that the earth they slide into is Earth Prime but when it is discovered that this San Francisco has the Azure Gate Bridge instead of the Golden Gate Bridge they realize that they have found Earth Double Prime.
- In The Exodus, while Quinn and Maggie Beckett are screening potential Earths, they encounter Earth Prime but are unable to stay as Maggie is unable to breathe its atmosphere.
- The third time that members of the Sliders arrive back on Earth Prime, they find that it has been invaded by Kromaggs. This spawns a new quest to find a weapon to eject the Kromaggs from their home.