Comic-Con 2012: 'The Walking Dead' sets Oct. 14 premiere dateAdd to Favorites | The Walking Dead
And U.S. fans won't be the only ones getting their zombie dose -- the episode will debut worldwide throughout the week, according to showrunner Glen Mazzara.
The clip debuted during a panel that brought stars Andrew Lincoln, Norman Reedus and Sarah Wayne Callies to Comic-Con, along with showrunners Mazzara, Gale Anne Hurd and Robert Kirkman.
Also on hand, executive producer Dave Alpert promised a faster pace in the new season with more zombies.
"Walkers will be decomposed and hungry and there will be a lot of them," said Alpert.
"The intensity level is incredible," added Hurd.
Stay tuned: We'll post the clip here if and when it's released online.