The penultimate episode - "The Walking Dead" season 4, episode 15 titled "Us" airs on Sunday, March 23, 2014 at 9 p.m. on AMC. However, the episode will be made available online. Fans can watch "Us" through live stream on AMCTV.com, iTunes and Amazon Instant Video.

"The Walking Dead" season 4, episode 15 can also be purchased from Netflix, Amazon and iTunes or fans can also watch the episode on demand through their local cable operators.

Official synopsis for "The Walking Dead" season 4, episode 15, "Us"

"Survivors rely on brutality and faith."

Now, that is a six word synopsis.

However, there is another synopsis which is as follows: "However brutal some survivors believe they must be to stay alive, we get to see that faith can sometimes be the strongest survival tool."

The episode features Daryl Dixon (Norman Reedus), Rick Grimes (Andrew Lincoln), Glenn Rhee (Steven Yeun), Tara (Alanna Masterson), Abraham (Michael Cudlitz), Eugene Porter (Josh McDermitt), and Rosita Espinosa (Christian Serratos).

One of the sneak peeks for the episode focuses on Abraham and Tara. They are resting at a safe zone. Abraham and Tara are awake while Eugene, Glenn and Rosita sleep. Abraham tells Tara that they will leave Glenn and her behind after getting the right vehicle as they have different missions.

In another sneak peek, Daryl Dixon and Len (one of the members of Joe's group) are in the woods. They are hunting. Len claims Daryl's rabbit. He tells him that Joe's group has the "claim rule."

"The Walking Dead" season 4 is expected to end on a hopeful note.

"We'll open our last half of the season pretty bleak, and we'll move them to something a little more hopeful by the end," told Robert Kirkman told TV Guide.

"We know where this season ends, which is not unlike when we got to the prison - it's a glimpse of what Season 5 will be," teased an AMC executive.