Timeless - "The Red Scare"

Exclusive: Timeless creators promise 'mind-bending twists' in tonight's season finale

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Feb 20, 2017, 6:30 AM EST

When the Timeless Season 1 finale, "The Red Scare," airs tonight on NBC, get ready for the time-traveling tale of Lucy, Wyatt and Rufus to go from time-bending to mind-bending in the most dramatic way, say executive producers and creators Shawn Ryan and Eric Kripke.

"Our team heads into 1954 and Joseph McCarthy/Red Scare Washington to climactically face down both Flynn and Rittenhouse once and for all," said Kripke. "It's a finale that doesn't pull its punches. It's a finale that really wraps up a lot of emotional character and plot issues that have been playing out all season. Big momentous things happen all throughout the episode. And then on top of that we ask a whole bunch of new questions and have a whole bunch of mind-bending new twists that will take us into Season 2."

"We put a lot of balls up in the air, and it was important to us to try to really give a very satisfying conclusion to the season to our audience," said Ryan. "So, while some new questions will be raised and some things will happen that will make you go, 'Well, geez, what's going to happen now in Season 2,' I think we just endeavored very hard to give the audience what they want."

The series has taken us through history to meet the likes of Abraham Lincoln, Hemingway, Houdini and Al Capone as our heroes follow the determined Flynn in his quest to wipe out Rittenhouse. The problem is that Flynn's willing to burn down all of history to take them out.

Timeless - \"The Red Scare\"

What's a hero to do? Join Flynn's mad quest to destroy Rittenhouse at all costs ... or stop Flynn and risk Rittenhouse controlling time and changing history for their own nefarious purposes? It's a journey that's had a cost for all of our heroes.

"You're always concerned about making it good. You are always concerned that you hope during the course of the season that you haven't written yourself into a corner," said Ryan with a laugh. "I remember Eric was giving instructions to Arika Mittman, who wrote the episode, before she wrote it. I remember him talking about this is a finale and yeah, this needs to feel a little different than the typical episode. So many storylines are coming to a head here, and you've got to write to that, and I think Eric was exactly right. We did a lot of hard work over the course of the season, hopefully to deepen the characters, put them into interesting situations and peril, and I think his worry was can we pay it off appropriately here. The viewers will decide for themselves, but I can say personally I am pleased with what we were able to do."

"I really think for anyone watching, it's really required viewing. I think it's an emotional character-driven episode, but it's also got major ramifications to our story," said Kripke.

Check out the preview below. "The Red Scareā€ airs tonight at 10 p.m. on NBC.