While the task force shuts down a business, Linden and Holder unite as they pursue "the voice" from the video. Seward becomes motivated to obey orders.
While David Robert Jones goes after his next target, Walter visits the Other Side to help the team's counterparts with an investigation into a Fringe case that touches on both worlds.
When a dead body is found at a local winery and their hotel room is robbed, Shawn and Juliet kiss their hopes for a romantic weekend away from work goodbye and join the investigation.moreless
A former client of Dean's calls him up when a plane crashes under mysterious circumstances. Dean and Sam must board an endangered flight to save the other passengers.
A comet is due to pass by Earth, but its trajectory changes to a collision course, causing widespread panic. When the comet appears to slow down — as if it's coming in for a landing — 4,400 people are deposited in an explosion over Highland Beach.
The returnees — "the 4400" — have been missing from months to years. None have any memory of where they've been, none have aged, and a small number are beginning to manifest paranormal abilities. Tom Baldwin and Diana Skouris, two Homeland Security agents, are appointed to find out what happened to the 4400.