J.J. Abrams

Troubles befall Aaron on his journey with Rachel to the mysterious tower, and a woman form Monroe and Miles' past causes emotional havoc for the two.

Miles needs to stop a mad bomber while Rachel starts her quest to turn the power back on for the rest of the planet.

Neville is captured by Miles. Rachel journeys to a mysterious tower which holds the only chance of restoring power.

The fate of humanity is on the line as Walter plans to make the ultimate sacrifice to stop the Observers before they were ever created.

To penetrate the Observers' headquarters and rescue Michael, their only hope for victory, Olivia must use her abilities and meet with some old friends.

While Walter tries to learn more about the mysterious Donald after Michael's revelation, Windmark undertakes his own quest for knowledge.

The team joins forces with Nina to recover a key piece of the plan that Walter created to defeat the Observers.

While Olivia and a recently-recovered Peter investigate a mysterious signal coming from a forest, Walter uses LSD to try and recall his memories of his plan to defeat the Observers.

Peter reaps the consequences of spying on an Observer leader. Meanwhile Olivia's search for another tape leads her to a woman who seems to be able to divine the future.

In the mid-season finale, Miles and Monroe finally come face to face and Charlie encounters someone unexpected.

To aid her rebel buddies, Nora enlists the help of Miles to infiltrate Monroe's base and assassinate him. Rachel continues work on a machine to amplify the mysterious pendants.

The fight against the Observers intensifies and a Fringe team member plans an attack on his own.

A ruthless tracker is sent after Miles, and Nora has to make a difficult decision regarding a family member.

The Fringe team investigates a pocket reality occupying an apartment building, and Peter learns that he has the power to stop the Observers.

The gang stumble across a group of kids fending for themselves and Rachel reveals the real reason she deserted her family.

Peter takes extreme measures when the team learns of a way to stop the Observers from changing Earth's atmosphere and wiping out humanity.

After infiltrating a subway station to recover a vital piece of Walter's plan, the Fringe team meet up with an old friend... and must determine if he can be trusted.

After orders from Monroe, Danny becomes more valuable, increasing his safety. The group experience more problems finding him, however.

The Fringe team meets with a group of humans who have taken refuge in the forest and seek to preserve humanity's history any way they can.

After successfully rescuing Miles from the militia, Charlie and Nora head off to meet up with Maggie and Aaron, with Nate on their trail every step of the way.