Last night's "Walking Dead" included a number of game-changing moments, including the introduction of a new character and plot line. The big moments look to be continuing in "Knots Untie," next week's episode that AMC has released both a promo and scene from.

Here's the brief, official synopsis for "Knots Untie" as revealed by AMC:

After Rick comes to the realization that Alexandria might not be as safe as he thought, decisions must be made about where to go from here.

"The Walking Dead" airs on Sunday nights at 9 PM ET on AMC.