Does a safe haven really exist on “The Walking Dead”? In past seasons, Rick’s (Andrew Lincoln) group attempted to find normalcy on the farm and in the prison. Both homes crumbled -- and their latest, Alexandria, doesn’t appear to be normal enough, either.

When Alexandria was introduced in the second half of Season 5, Rick’s batch of survivors were surprised at how the others were living. After the Governor (David Morrissey) and the Terminus cannibals, everybody knew there were much more dangerous threats than walkers in their new world. However, the Alexandria folks were sheltered from all that, thanks to the wall surrounding them.

Rick, Carol (Melissa McBride) and Daryl (Norman Reedus) knew their new safe zone was weak, and began hatching a plan to take over. But after a few days with food, a home and protection, the plan started to fall apart. The group began to believe that they could live in Alexandria -- but, unfortunately, that idea will deteriorate in episode 15, “Try.”

According to the synopsis for episode 15, “Life within the walls begins to mimic life outside.” Although the episode description doesn’t go into details, “Walking Dead” fans can assume that it has something to do with the death of Deanna’s (Tovah Feldshuh) son, Aiden (Daniel Bonjour), and the big reveal by Father Gabriel (Seth Gilliam).

For those who missed episode 14, Aiden’s inexperience outside the walls ultimately led to his death. On a run with Glenn (Steven Yeun), Eugene (Josh McDermitt) and a few others, Aiden accidentally shot a grenade that was on a zombie wearing riot gear. The blast resulted in Aiden getting skewered on some metal shelving -- but it didn’t kill him. Glenn and the others were unable to free him, and he wound up getting ripped apart by a group of walkers.

That wasn’t the big jaw-dropper of the episode, though. Viewers were shocked when Father Gabriel went to Deanna and warned her that Rick’s group were not to be trusted. What an ungrateful weasel.

The synopsis for episode 15 indicates the survivors will discover that “sheltered life may not be possible” in the zombie apocalypse. Sounds like “Walking Dead” fans can expect some action. Watch two sneak-peek videos of “Try” below, and catch the full episode when it is shown on AMC Sunday, March 22, at 9 p.m. EDT: