What if the Hindenburg had never crashed? If President Lincoln had never been assassinated? What if the women’s suffrage movement had been silenced? Or Neil Armstrong and Buzz Aldrin had been stranded on the moon for eternity? What effect would those changes — some good, some bad — have had, not only on those involved, but on the entire world? 

Timeless ponders this ethical dilemma as it follows three reluctant travelers through time; not to change history, but to preserve it. 

When historian and Stanford professor Lucy Preston (Abigail Spencer), computer engineer Rufus Carlin (Malcolm Barrett), and Delta Force operative Wyatt Logan (Matt Lanter) are brought together by the Department of Homeland Security to pursue a terrorist in possession of a stolen time machine as he wreaks havoc on history, they are more than a little bit skeptical. With the help of DHS agent Denise Christopher (Sakina Jaffrey), billionaire inventor Connor Mason (Paterson Joseph), and engineer Jiya Marri (Claudia Doumit), the “time team” soon find themselves traveling through time. So far the team have found themselves in years ranging from 1692 to 1983, meeting their heroes, dodging bullets, and trying to stop those who would change history in their favor.

As our story continues, bonds are formed, loyalties are tested, friends become enemies, and sometimes enemies turn out to be friends. The latter is especially true of Garcia Flynn (Goran Višnjić), the aforementioned (alleged) time-traveling terrorist who has an intriguing yet-to-be-fully-revealed connection to our team.