After moving from cancellation to non-cancellation, it seems Timeless faces the threat of going back and existing no-more once again.

The NBC sci-fi show was famously axed last year after just one season, before fan outcry led the network to reverse its decision only a few days later, and it is currently airing its second run.

However, hold fans may want to hold their horses, as co-creator Erik Kripke has admitted that its future may not be so rosy after all, revealing in a tweet that it could "very well get cancelled" again.

This content is imported from Twitter. You may be able to find the same content in another format, or you may be able to find more information, at their web site. #Clockblockers #RenewTimeless #Timeless @nbc @NBCTimeless #SPNFamily pic.twitter.com/YP6geFVKE0 — Eric Kripke (@therealKripke) May 5, 2018

"We need you to suit up (in period clothes, preferably), climb in the Lifeboat (it's cool, it holds 4 people now), and get to work," he wrote.

"Truth of the situation: we are, once again, on the bubble. We are not in a stable or safe position. We could very well get cancelled - for good, this time.

"The gang at NBC genuinely loves the show and tells us often. But our ratings are modest. I know we're on late for a family show (I agree!) and many other factors, but ultimately, it doesn't matter. Network television is based on ratings. That's the bottom line".

Sony

However, he encouraged fans to help the show's ratings improve in order to save it, and praised them for supporting the show.

Timeless focuses on the time travelling adventures of characters played by Abigail Spencer and Matt Lanter, and has gained some famous fans including Ghostbusters' Leslie Jones and Star Trek's William Shatner.

Well, we guess if fans' enthusiasm saved the show once, it could always do it again, right?

Timeless airs on NBC in the US. E4 airs the show in the UK.

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