All good things must come to an end. Season 5 of “The Walking Dead” is set to conclude on Sunday, and fans won’t want to miss it. The survivors finally have a safe place to call home – but Rick’s (Andrew Lincoln) refusal to play by the rules threatens to make the whole thing come crashing down.

Episode 15 of the AMC series set fans up for what is bound to be a jaw-dropping season finale. Daryl (Norman Reedus) and Aaron (Ross Marquand) discovered that there are other humans in the area -- and they don’t appear to be friendly. Meanwhile, Deanna (Tovah Feldshuh) mourned the loss of her son and was forced to deal with Rick’s shenanigans. He went against Deanna’s orders, and confronted Pete (Corey Brill) about physically abusing Jessie (Alexandra Breckenridge). The two men got into a brutal fight that resulted in them going through a window. Rick warned Deanna that things needed to change, but the Alexandria leader seemed to hint that Rick needed to leave the safe zone.

Here are four questions we want answered in the Season 5 finale, episode 16:

1. Where In The World Is Morgan Jones?

When will the Rick and Morgan (Lennie James) reunion take place?! That’s the question on every fan’s mind. Morgan has popped up randomly throughout the season, and was last seen at Father Gabriel’s (Seth Gilliam) abandoned church. He found a map with Rick’s name scrawled across it, but still hasn’t met up with his old friend. Since the character was reintroduced in the Season 5 premiere, “Walking Dead” viewers could potentially see a reunion in the finale.

2. What Is Enid Up to?

Is Enid (Katelyn Nacon) up to no good? Like Carl (Chandler Riggs), the teen is a newcomer to Alexandria. She’s extremely moody and sneaks out of the safe zone quite often. Carl’s been following her, but hasn’t exactly seen what she’s been up to. Could she just be embarking on innocent hikes? Or is she doing something that potentially could lead to the downfall of Alexandria? We’d like the finale to expose what’s really going on with Enid -- and if she has a sketchy backstory.

3. Why Does Nicholas Have The 'J' Gun?

One mystery was solved in episode 15: It was Nicholas who stole Rick’s out of the blender. The gun was marked with the letter J, and viewers saw that Nicholas had stashed it in the woods.

Nicholas has access to guns at Alexandria for when he goes on runs. However, he’s now on probation after the death of Aiden (Daniel Bonjour). Did he take the gun for self-defense? Or does he want revenge on Glenn (Steven Yeun) because of the deadly run?

4. Who Is Carving The Letter W On The Zombies?

For the past few weeks the survivors have been stumbling across walkers with the letter W carved on their foreheads. What does it mean? And who is mutilating the zombies? Fans are getting closer to an answer. In episode 15 it appeared that the humans behind the act were in the area surrounding Alexandria. But they were doing much worse than just carving the letter. Daryl and Aaron stumbled across a dismembered body and a naked woman tied to a tree. The woman had a W carved on her forehead as well, and it looked as if she was alive when the act occurred.

One theory is that the humans behind the Ws are a group called the Whisperers. In Robert Kirkman’s “Walking Dead” comics, the Whisperers “live among” the dead and kill humans. It’s about time for a new threat to be introduced.

“The Walking Dead” Season 5 finale will be 90 minutes long and air on AMC on Sunday, March 29, at 9 p.m. EDT. What questions do you have before episode 16? Tweet your thoughts to @AmandaTVScoop.