The concept of "Carentan," main characters stuck in a time dilation field with people who will disappear, is nothing new and has been done many times before. Luckily, the episode doesn't get too caught up in the concept itself, which can spur discussions on what it means to exist and whether one has the right to end these people's lives. Instead, the episode focuses on how the characters interact with one another and the situation at hand. The episode works well for the most part, even if a reset at the end was inevitable.
Were the writers trying to make a connection to the previous episode? There was the fire elemental in the recap at the beginning, but nothing came of it. Are we to assume that whatever force Magnus mentioned at the end of the episode is harnessing the fire elemental's power?
Score: 8.8/10