Battlestar Galactica: The Oath

"The Oath" is the fifteenth episode in the fourth season of the reimagined Battlestar Galactica. It aired on television in the United States and Canada on January 30, 2009 and in the UK on Sky One on February 3, 2009. In the previous episode, the fleet's leadership announced its plan to upgrade the fleet's jump drives using Cylon technology to triple its reach in searching for a final home. Felix Gaeta, betrayed by Cylons on several occasions, vehemently opposes the plan. Finally, he makes a pact with Tom Zarek, as of then not fully disclosed, to, in his words, rectify things that have gone wrong. The episode has a survivor count of 39,643.