Have you seen the Bruce Willis/Brad Pitt 1995 film 12 Monkeys? While this series is based on that film, it’s very much a reimagining of the source material.
Sure you’ve got the time traveler who arrives in the present to stop a deadly disease from wiping out mankind. However, his journey and the new characters we meet along the way are unique to this television series.
Plus instead of just 2 hours the writers have 13 in which to tell their complex story.
See the photos and read more here: http://www.tvfanatic.com/2014/10/12-monkeys-teaser-a-possible-second-chance