Republic of Doyle has become a massive hit in 96 countries across the globe, and this week, the show's popularity will expand again with syndication in much of the United States.

While Americans are about to be introduced to the world of Doyle, fans have been trying to figure out all summer where in the world Jake Doyle ended up at the end of the fourth season.

"Now he ends up here, but this could be a flashback," said Allan Hawco, who plays Jake Doyle.

"Maybe this year, all of season five goes back in time to before Republic of Doyle started – you never know."

It turns out that feeling of not being too sure where Jake Doyle is, isn't far off from how Hawco feels during filming.

"At any given moment, particularly at this stage, I'll be writing episode 13, 12, say 14; editing episode seven [and] eight; and shooting episode 10; sound-mixing episode five," he said. "You get a little confused."

Hawco said the Doyle team has recruited Gander-born Brad Peyton — who's making a name for himself in Hollywood — to direct the season opener.

Sean McGinley, who plays Jake's father Malachy Doyle, said fans can expect a Hollywood-sized dose of action this season.

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Krystin Pellerin, who plays Leslie Bennett on the popular TV show Republic of Doyle, says there will be a lot of new conflict in the new season. (CBC)

"There's as much action in the first episode as is in most feature films," McGinley said.

Lynda Boyd, known to fans as Rose Miller, said there will be a lot of familiar faces – both old and new to the show.

"I got to do some fun stunt stuff with Shannon Tweed," she said.

"I'm just enjoying myself – this is the best job I've ever had. I don't know how long it's going to last; I just enjoy every minute of it while I got it."

According to Krystin Pellerin, there's some unexpected events coming up for her character Leslie Bennett, but no one's giving anything away.

"I can't say too much, but I do know that Leslie's past comes back to haunt her in this season coming up," Pellerin said.

"We have a lot of really exciting new characters and conflicts."

Season five of the show starts on Oct. 2 at 9:30 p.m. NT on CBC Television.