A New Day In The Old Town Olivia returns to a perplexing alternate reality while Peter, unknowingly in a race against time with an ominous mobile force, pursues information about Olivia's visit. Walter reenters the lab to cook up a bit of fringe science, and of course, some custard for Peter's birthday.
Night Of Desirable Objects A highway construction worker in rural Pennsylvania goes missing when he is mysteriously drawn into an underground tunnel filled with human remains. Meanwhile, back in the lab, Walter is attempting to simulate travel between realities on frogs. When it's discovered that the disappearance in Pennsylvania is not an isolated incident, the Fringe team travels to the crime scene to unearth evidence.
Fracture Peter, Walter, Olivia and Broyles pursue a strange and deadly occurrence in Philadelphia where a bomb blew up inside a train station but left no trace of any explosive device. The perplexing and unexplained set of circumstances returns Walter to the lab to closely examine the human remains where he uncovers an unlikely energy source that triggered the explosion. With the explosive threat of more bombs and links to a classified military project, the intense investigation leads Olivia and Peter to Iraq.
Momentum Deferred Recuperating from the traumatic and alarming meeting with Massive Dynamic founder William Bell, Agent Dunham consumes a powerful fringe concoction that Dr. Bishop prescribes to stimulate her memory. Meanwhile, the Fringe Division investigates a series of robbery cases that are tied to shape-shifting. As clues are tracked and memories are jogged, another woman experimented on by Dr. Bishop is introduced and a flashback reveals more about Olivia's visit to the alternate reality.
Dream Logic The Fringe team travels cross-country to Seattle after learning of a mysterious incident involving a man who attacked his boss because he believed he was an evil ram-horned creature. As these puzzling occurrences continue, the team tirelessly explores strange and creepy links to dreams. In pursuit of additional information, Agent Broyles has a disconcerting meeting with enigmatic Massive Dynamic executive Nina Sharp that leads the investigation in an unthinkable direction.
Earthling The Fringe Division takes on a puzzling investigation of victims who inexplicably disintegrate into ash. The shadowy case casts light on Special Agent Phillip Broyles' past and leads the team to the possibility of foreign fringe science.
Of Human Action When a kidnapping rapidly escalates into a hostage situation in New York, local authorities close in on the suspects only to discover that an unknowable force has mind-blowing consequences. The investigation intensifies and the mystery and threat deepen to unimaginable proportions when the Fringe Division identifies a link between the kidnapping and Massive Dynamic.
August A peculiar abduction occurs in Boston, leading the Fringe team to uncover details of the mysterious man known as The Observer. While the bizarre case takes center stage, Walter, Peter and Astrid hit the lab to analyze unusual evidence and deal with Walter's insatiable appetite for milkshakes.
Snakehead After a cargo ship runs aground, the shoreline becomes littered with bodies hosting a giant squid-like creature. The Fringe team descends upon the scene to examine the bodies and discovers that the mysterious organisms are actually giant parasites. As the investigation unfolds, Walter heads back to the lab while Olivia, Peter and Broyles race against time when they realize the case has ties to a threatening organization.