Warning: spoilers to follow. If you don’t want the upcoming season of “Better Call Saul” spoiled, stop reading now.

A new promo trailer has been released by AMC to promote the upcoming, hotly anticipated third season of its acclaimed “Breaking Bad” spin-offBetter Call Saul,” which stars Bob Odenkirk reprising his iconic role as Walter White’s shady lawyer Saul Goodman, albeit before he was shady and before he was called Saul Goodman (in the spin-off, he’s known by his real name, Jimmy McGill). The only purpose of the trailer, which is just thirty seconds long, is to confirm the rumoured return of a major antagonist from “Breaking Bad.”

Gus Fring will make his return

The new “Better Call Saul” trailer is a short advert for the fast food chicken restaurant Los Pollos Hermanos, which is owned by Gus Fring (Giancarlo Esposito), who in “Breaking Bad” was a smiling chicken chain manager by day, and the notorious drug lord that got Walt in over his head working for him by night.

While “Better Call Saul” takes place before the days of Walt’s foray into the methamphetamine business, it does feature the character of Mike Ehrmantraut (Jonathan Banks), who worked closely with both Gus and Saul on “Breaking Bad,” so he could be the one to bring them together in the spin-off.

In a separate statement to IGN, AMC confirmed that Fring would be returning to their airwaves this season on “Better Call Saul.” Perhaps Fring was the one who left that note that said “Don’t” on Mike’s windscreen when he was about to carry out a hit, and that’s how he ends up hiring him as his consigliere. See the new promo below:

It’s unclear what role he’ll play in Season 3

AMC did not offer any clarity on how big of a part Fring will play in the third season of the show, whether it’ll be the occasional cameo capacity like fellow ex-“Breaking Bad” character Tuco or a regular occurrence in the story like fellow ex-“Breaking Bad” character Hector.

Either way, he’ll definitely be a part of Mike’s story, since Mike is working for him when “Breaking Bad” begins and will need to work for him by the time “Better Call Saul" ends.

When Season 2 of “Better Call Saul” left off, Jimmy’s brother Chuck (Michael McKean) screwed his brother over yet again, despite the fact that Jimmy has never been anything but nice to him, and given him a million second chances to rectify his slyness, by sneakily collecting some incriminating evidence against him while he was simply trying to apologise. When Season 3 begins, you can expect their feud to rapidly intensify.

Better Call Saul” Season 3 will premiere on AMC and Netflix in February.