Tonight on Fringe, both Fringe teams work as one, jumping back and forth from both universes. The subjects of the Cortexiphan experiments have returned and are aiding David Robert Jones in his plight against both worlds.
Earthquakes are recurring simultaneously in various parts of the world, such as Australia, China and New York, on both sides of the bridge. Walter Bishop addresses both teams, saying that David Robert Jones plans to destroy both of their worlds. These earthquakes are exactly how he has begun doing so. At the time of each quake, there are individuals at the center of havoc, Cortexiphan subjects.
A man by the name of Nick Lane confronts Lincoln Lee and explains his vision of the earthquake, yet he didn't witness it from his side of the bridge. The message is relayed to Olivia Dunham who recognizes Lane as one of her fellow Massive Dynamics experimentees. The Fringe Division locates their version of Lane and take him into custody at the Federal Reserve Building. Here, Olivia interrogates him.
Lane has been lead to believe that Jones is the good guy and will save those like him from the war between the worlds. We also learn that as a product of experiments by Dr. Bishop, Lane developed a condition where his feelings can be projected onto others. Olivia continues to stress his much-needed assistance in the situation.
Lane appears to come around and recalls a warehouse where he once met Jones. He, along with Peter and Olivia, visit the location. Lane remains in the car while the agents investigate. They find nothing and Lane escapes by transferring his bad energy on to the officer who in turn lets him go. Nick Lane vanishes.
The Fringe teams are left with no other alternatives. In order to keep Jones from merging both sides together as one, the link must be dissolved. Yes, they must close the bridge.
Lincoln decides to stay with his new family, saying goodbye to the world he once new. Walter is scared that his son Peter will disappear as the bridge is shut down. Yet as the button is hit everything goes as planned even though it it was a tearful farewell.
Next week on Fringe is the beginning of the end. People are spontaneously combusting and in order to stop the madness, Walter must reach back into his painful past.
"In his vision, he says there were no Twin Towers."
"We haven't seen rain in over 20 years."
"I'm afraid we have to close the bridge."
"I've come to accept that he's not ours."
"I think I shall miss them more than I imagined."