The third episode of the fourth season, entitled “Isolation,” delivers as tensions begin rising in the wake of an outbreak that threatens the entire group.

The final moments of last weeks episode,”Infected,” left the majority of viewers (myself included) salivating for more and left numerous questions unanswered. “Isolation” answered all those questions and opened the proverbial flood gate for tension building moments as we get to see the true colors of series regulars as well as series newcomers.

It goes without saying that no spoilers will be revealed in this review, primarily for those who haven’t had the chance to watch the newest episode yet, but I will say this much: You don’t know some of these characters as well as you think you do.

The emotional depth that Melissa McBride, who plays series mainstay Carol Peletier, is astounding to say the least. In previous seasons I chalked Carol’s character up as nothing more than a filler, a constant wet blanket weakling who had to be saved and rescued by the more aggressive and action minded members of the group. As this season has proven, “Carol” is much more than the sum of her parts.

Chad Coleman, returning as new crew member Tyrese, shows amazing emotional connection to his character in this weeks addition to the fourth season. Without going into detail why Tyrese would be in an emotional state I will say this: the reverberations of the event will continue to echo throughout the rest of the season and then some.

The highlight of the episode involves Daryl, Michonne, Tyrese and Bob (played respectively by Norman Reedus, Danai Gurira, Coleman and Lawrence Gilliard Jr.) during a scavenging trip to find medicine and supplies. The tension and action within the first few minutes of the trip alone had me on the edge of my seat. Running into the largest group of Walkers I’ve seen since the shows second season the group barely escapes intact, and while everyone is physically in one piece there are certain hints that will force audiences to begin questioning the psychological well being of one of the four listed above.

As an outbreak of epic proportions begins to tear it’s way through the prison we’re forced to ruminate over one monumental question: Who will survive this sickness? Will Daryl and company make it back to the prison with the needed supplies in time? Will the events of episode three and the fall out of the episodes climax have long lasting effects that will change the roster of the group? As always, I am definitely looking forward to next week’s installment.