Below is the synopsis of "The Expanse," per IMDB.

A police detective in the asteroid belt, the first officer of an interplanetary ice freighter and an earth-bound United Nations executive slowly discover a vast conspiracy that threatens the Earth's rebellious colony on the asteroid belt.

"Lucifer" isn't the only show fans are trying to save. Deadline writes the production company behind "The Expanse" isn't giving up on the series.

The current third season of The Expanse will be the space drama’s last one on Syfy. The cable network has decided not to renew the show for a fourth season, with the last episode slated to air in early July. Alcon Television Group, which fully finances and produces the critically praised series, plans to shop it to other buyers.

The Expanse‘s Live+3 linear ratings started with 581,000 among adults 18-49 and 1.378 million total viewers in Season 1. Season 2 slipped to 457K in 18-49 and 1.05M viewers; Season 3 to date is running just below the Season 2 averages, at 400K and 1 million, respectively. That is below the performance of Syfy’s top dramas The Magicians and Krypton, as well as comedy Happy!, but in line with a number of co-productions on the network.

“We are very disappointed the show will not be returning to Syfy,” said Alcon Entertainment co-founders and co-CEOs Andrew Kosove and Broderick Johnson. “We respect Syfy’s decision to end this partnership but given the commercial and critical success of the show, we fully plan to pursue other opportunities for this terrific and original IP.”