W2TCH

Battlestar Galactica (2004 – 2009)

2004 • 4 seasons • Drama, Action & Adventure • TV-14
JustWatch▲ +6#52IMDb8.7/10188,511TMDB82%1,858Rotten Tomatoes—Metacritic—
On September 25, 2026
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Season 4

Battlestar Galactica · S4E8 — Sine Qua Non

May 30, 2008 · 44 min · 7.4 (25 votes)

Synopsis

The disappearance of President Roslin, coupled with the loss of the Cylon base ship, necessitated a swift decision regarding a new leader. The *Galactica* embarked on a search for the vanished vessel and the crew members of the *Galactica* who had been aboard.