WATCH: Participants turn up heat in 'Single's Inferno 4' trailer

The promotional poster for 'Single's Inferno 4' reveals some of the participants in the reality dating show. Photo courtesy of NetflixThe search for romance on a deserted island is back!

Netflix dropped Monday the trailer for the upcoming fourth season of its South Korean reality dating show "Single's Inferno," teasing viewers with glimpses of steamy and flirtatious moments.

The program follows a group of participants seeking romance while staying on an island, where they also face various challenges. If they successfully pair up as a couple, they are rewarded with an evening at a luxury resort known as "paradise."

The nearly two-minute trailer introduces several participants, in their usual shirtless or beachwear outfits, and their interactions both on the island and in paradise.

It also includes snippets of hosts Hong Jin-kyung, Lee Da-hee, Kyuhyun, Hanhae and Dex reacting to the scenes.

Photo courtesy of NetflixIn a press release, Netflix said the fourth season will "take things up a notch" as it boasts "an even more daring cast of singles."

"This time, Season 4 promises a deeper emotional journey with more intense and honest interactions, delivering high-stakes romance at its finest," the streamer said.

"Single's Inferno 4" is set to premiere on January 14.

"Single's Inferno" is one of the popular Korean reality titles on Netflix, joining the ranks of other hit shows like the survival competition "Physical: 100" and the game show "The Devil's Plan," among others.

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