Olivia fights to find her way home; Peter and Walter try to move on with their lives alongside alternate Olivia.

The story alternates to the Fringe Team "over here" where they investigate a mystifying case that people are discovered in a trance-like state that ultimately leads to their death. The unlikely suspect: a mysterious box. As Peter and Walter collaborate to study its properties, alternate Olivia presses on and turns up the heat on an unsuspecting Peter. Meanwhile, key information about the future is revealed when Walter and Nina meet at Massive Dynamic for the emotional reading of the last will and testament of William Bell.

In this case, timing is everything as a series of anomalous events lead the Fringe Division to investigate deadly incidents with unimaginable coincidences. As the freaky crimes continue to occur, the team is in a race against time to protect potential victims. Meanwhile, Secretary Bishop shares his strategic plan with Colonel Broyles as Olivia grapples with a heart-stopping vision.

Newton, concerned about the consequences of a distressing development involving a high-ranking official, is forced to call to action a sleeping shapeshifter. As Walter and the rest of the team gather evidence, they move the investigation to Massive Dynamic, where Olivia goes on high alert and Walter finds himself in a perilous situation.

On the Other Side, a man sets out to free his twin brother from an amber quarantine zone. Meanwhile, Walternate begins the experiments to duplicate Olivia's ability to transition safely between worlds.

Back "over here," the Fringe Division investigates a bizarre phenomenon when 15 people up and down the Eastern Seaboard, all suffer retrograde amnesia from listening to their shortwave radios on the same frequency. Much to Walter's dismay, Peter presses on with piecing together the mass destruction device. Just as alternate Olivia and Peter's chemistry deepens, the anticipation of Olivia's return escalates.

When a serial kidnapper "over there" strikes again, the emotional and familiar case hits home for Colonel Broyles, sending a determined Olivia to uncover additional details about the abductions. In the meantime, Olivia fights on and reunites with Henry to enlist his services on an intense and covert mission to return home.

Peter struggles to cope with recent events; Olivia searches for an ally; a device that communicates between universes is discovered.

When the Fringe Team investigates a case where a victim had his heart extracted, it's just the beginning of a series of mysterious and reanimating events tied together. Meanwhile, Peter comes to terms with the reality of his relationship with Olivia.

The Observer contacts Walter and asks for his help in setting the balance straight and rectifying a shared mistake. Meanwhile, a retired musician emerges from obscurity when the staff at his hospital discover that he received a visit from his son... who has been dead 25 years.

When the Fringe Team visits Massive Dynamic's assembly of the doomsday device, Walter becomes greatly concerned for Peter's well-being, so he turns to Nina for added brain power to understand the relationship between Peter and the superweapon. Meanwhile, the discovery of a dead body triggers an intense investigation.

When a scientist falls dead after ingesting a lethal cloud of blue powder and his bones disintegrate in his body, the CDC suspects a biological attack. As the Fringe Team investigates further, a subject from Walter's past with ties to Olivia reluctantly agrees to assist with the intense case.

A terrorist Over There arms himself with an insect that enjoys human flesh; alternate Olivia is reunited with her boyfriend; despite remaining determined to save his world, Walternate discovers there are lines he won't cross.

A series of Fringe events leads the team to the home of a woman grieving over the death of her husband, while Peter and Olivia make an effort to repair the emotional rift between them.

In a follow up to last season's "Peter" flashback episode, the all-new "Six Months Later" episode revisits a poignant period of time for both the Bishops and Olivia.

The Fringe Team investigates a group of thieves who can break the laws of gravity. Meanwhile, Walter attempts to delay the damage he's caused to the fabric of the universe.

While investigating reports of a woman that can't be killed, the Fringe team deals with the return of William Bell.

On the Other Side, a mysterious team of doctors abducts Bolivia and attempts to induce childbirth. Lincoln and Charlie race desperately to find her, while learning the truth about their comrade and her recent adventures on This Side.

In the episode 19, season 3 (s3e19) of the American science fiction TV serial Fringe we have seen that the team makes a desperate attempt to remove William Bell's consciousness from Olivia's body before she's lost forever. All the scenes and the plot in this episode are great. In this way `this episode is worth to be called perfect.

The beginning of the end is triggered when Walternate finds a way to wreak havoc "over here.

Olivia joins forces with the mysterious Sam Weiss in a desperate race against time.

As the thrilling third season propels to a climactic close, questions will be answered as Peter confronts his destiny and a beloved team member meets an untimely demise.