The Last of Us is a highly anticipated TV series adaptation of the popular video game of the same name. Episode 1, titled When You’re Lost in the Darkness, has received generally positive reviews from critics. Many critics have highlighted the episode’s strong cinematic elements and its ability to seamlessly blend elements from the game with new additions and extra layers added by writer Craig Mazin.
The episode opens with a speech about viral outbreaks and pandemics in the 1960s and quickly establishes the threat of a deadly fungus as the main antagonist. The episode follows the main characters Joel and Tess as they come across a young girl named Ellie, who they soon discover is immune to the fungus. 
In this episode, viewers are introduced to the brutal and violent world of the series, but also get a glimpse into the themes of connection, family, and survival that will be central to the series. 
In addition, the episode was praised for its ability to capture the atmosphere and tone of the original game, with many reviewers noting that it “holds a special place in the heart of gamers” and that it is “arguably one of the most cinematic games of all time.”  The episode was also praised for its attention to detail, with one reviewer noting that the episode opens with a speech about virus outbreaks and pandemics in the 1960s, setting the stage for the threat of a deadly fungus and providing a strong sense of realism.