Ep 16. Unleashed

In episode 16 of Fringe's first season, titled "Unleashed," the team is faced with a string of animal attacks in the city. As they investigate, they discover that the attacks have been caused by a strange virus that has been genetically engineered to activate the aggressive instincts in animals, turning them into violent predators.

As the team works to find a cure for the virus before it spreads to humans, they learn more about the organization responsible for creating it, and the twisted motives behind their actions. Meanwhile, Agent Dunham is forced to confront some demons from her past as she deals with the emotional fallout from her relationship with Peter.

With its blend of science fiction, suspense, and character-driven drama, "Unleashed" is a standout episode of Fringe's first season. As always, the show excels in its ability to take a seemingly mundane concept – in this case, animal attacks – and turn it into a high-stakes thriller that keeps viewers on the edge of their seats.

The episode's exploration of the relationship between Olivia and Peter is particularly compelling, as we see Olivia grapple with the emotional toll of her job as a Fringe agent, and Peter try to understand and support her through it all. And of course, the science fiction element of the episode is just as fascinating, as we learn more about the mysterious organization behind the virus and their twisted plans for the future.

Overall, "Unleashed" is a must-watch episode for fans of Fringe. With its blend of exciting action, gripping drama, and mind-bending sci-fi concepts, it's a perfect showcase of everything that makes the show such an enduring classic.