New showrunner Scott M. Gimple has debuted first footage of The Walking Dead Season 4 at Comic Con, as the producers and cast tease what to expect.

The Walking Dead - Season 4

"Things are going to be way crazier; it's an escalation," comics creator Robert Kirkman said of what to expect in the fourth season, which will premiere Sunday, Oct. 13 at 9 p.m., followed by the season premiere of The Talking Dead. The second half of the season will return in February.

"It's been crazy. We did the first episode, I wrote it and it blew my mind," Gimple said of how his new gig has been so far.

With so many characters being killed off on the series, EP Gale Anne Hurd revealed that the producers made a trip to surprise actress Sarah Wayne Callies (Lori) to see her new play, with EP Greg Nicotero noting that he has remained in contact with Jon Bernthal and Jeff DeMunn, whose characters both died during season two.

This season, Gimple said fans shouldn't get too comfortable with the nature of the threat of the Governor - or even walkers. "They might get a little comfortable, but then things might get a little dangerous," he said of threats on the series that have included the evolution of walkers.

The first footage of season four revealed that the walkers are quickly closing in on the prison, which is now employing tricks Rick picked up on from Morgan. Additionally, someone attacks inside the prison - with Rick and Tyreese looking to find out just who's behind it.

The trailer does have a lot of spoilers and indications as to the direction season 4 is moving in, so be warned.

The Walking Dead Season 4 returns to AMC on Sunday 13th October at 9pm. The second half of the season will return in February (the same gap as this year had). You can get in touch with us by mentioning #ALJTMedia on Twitter, leaving a comment on our Facebook, Google+ or LinkedIn page, or writing a comment below.

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