This is a really good TV series, and it works brilliantly as a drama, regardless of its science fiction content. It was rated by many critics as one of the best dramatic series being shown, and I think, it deserves its accolades. It is does not have a lot of science fiction elements, as the underlying premise of a group of humans fleeing in space ships from a terrible enemy, functions as a backdrop for many everyday dilemmas that people experience. The dramatic and character elements of the series always over shadow the science elements. It is not a "Star Trek", and so if you want to see gripping action drama, with a touch of mystery and imagination, then this is an excellent choice.