“I just left the mixing stage,” says “Psych” creator Steve Franks. “We mixed our season premiere, which is very exciting.” Today, USA Network's faux-psychic comedy-mystery series returns for a fourth season.

It's still set in Santa Barbara, Calif., but the season premiere episode is set where the series has always been filmed — the Canadian province of British Columbia.

Says Franks, “(Producer) Andy Berman and I came up with it while I was directing the sea lion episode last year. We were in the van every day, going to all our sets, and we kept saying, ‘OK, we're going to do the British Columbia episode.'”

Guest starring Cary Elwes (“The Princess Bride”) as an elusive art thief, “Extradition: British Columbia” also allows series stars James Roday, who plays fake psychic and private eye Shawn Spencer, and Dule Hill, who plays his childhood pal and partner Burton “Gus” Guster, to show off their best snow-bunny looks.

It was a lot of fun for Franks as well. “We're sitting there, scouting locations,” he says, “and I'm riding the chairlift to the top of Whistler, and I'm like, ‘Wow, this is a job I should not be allowed to have.'”

As to what the overall plan is for the year, Franks says, “We're just trying to take what we did last year and build on it. We went a little darker here and there; we got a little more emotional.

“My constant plan, my marching order every year, is to expand the things that we can get away with, on the silly side and on the intense side.

“So, this year we're going to do a Bollywood episode. Oh, yeah.”

“Bollywood” refers to the prolific film industry based in Mumbai, India, known for elaborate musical productions. The episode itself is called “Bollywood Homicide.”

“I co-wrote it with Anupam Nigam, our Indian writer,” Franks says. “I've been telling him for years that I'm going to make him write a Bollywood episode, and it seemed like the perfect time.”

According to Franks, Jay Chandrasekhar (“Super Troopers,” “Chuck,” “Lipstick Jungle”) is directing, and he's called on a family member to flesh out the cast.

“We got the guy from ‘Heroes,'” says Franks, referring to Sendhil Ramamurthy, who plays Mohinder Suresh on the NBC sci-fi drama. “He's actually one of Jay's cousins … so it worked out very well.”

Chandrasekhar, who is also an actor, plays a role in addition to his directing duties in the episode. But the fun doesn't end there. The theme song for “Psych” is “I Know You Know,” performed by the Friendly Indians, Franks' band. It's been reworked for episodes in the past, and it's getting changed again for “Bollywood Homicide.”

“We're doing the theme song in Hindi,” Franks says, “which will be even more fun. It's disturbing, because I haven't gotten to the things that I'm going to have to do to sing the song. It scares me, because it was hard enough for me to do the Spanish version.

“And it's all very loose translations of it. It's the same idea. There's no literal translation for the song.”

Also in the works is an episode called “Let's Get Hairy,” co-written by Roday and set to air in October just before Halloween.

“Guy walks into the Psych office,” Franks says, “and says, ‘Please don't listen to me, but I think I'm a werewolf,' which will be fun.”