When an old enemy, the Cylons, resurface and obliterate the 12 colonies, the crew of the aged Galactica protect a small civilian fleet - the last of humanity - as they journey toward the fabled 13th colony, Earth.
When a computer geek inadvertently downloads critical government secrets into his brain, both the CIA and the NSA assign an agent to protect him and exploit his newfound skills.
As the residents of Deadwood gather to commemorate Dakota's statehood in 1889, saloon owner Al Swearengen and Marshal Seth Bullock clash with Senator George Hearst.