Carter and Stark must work together as an aggressive virus is sweeping across Eureka, while Kevin’s life is in danger.

Lincoln tries to save LJ and Sara. But he can’t. Meanwhile, Michael has a phone conversation with Sara. And Lincoln gets a call from Susan B. saying that she put something in the garage for him.

Peter falls in with Irish gangsters who know about his past. Hiro works to contain the damage caused by his journey into the past. Kensei’s power will be revealed. Suresh locates and cures the Haitian. Matt investigates the murder of Mr. Nakamura. West comes to know of Claire’s powers. Maya and Alejandro enter Mexico and find their powers more of a hindrance than a help.

Ted and Barney pretend to be visitors to New York City to pick up women. Robin is still dating Gael.

Floating in deep space with the city’s protective shield failing, the team must do all they can to keep Atlantis alive. A radical injury threatens Dr. Weir’s life.

Earl begins his prison sentence. Meanwhile, Joy tries to repay Earl by taking care of Randy (who is struggling to adjust) and a prison bully is looking for Earl.

Earl begins his prison sentence. Meanwhile, Joy tries to repay Earl by taking care of Randy (who is struggling to adjust) and a prison bully is looking for Earl.

The town along with its residents mysteriously start to deconstruct. The prime suspect is an artist who couldn’t get along with Stark when he was working at Global Dynamics.

After Michael gets bad news from Lincoln, he sets out to find a prisoner named James Whistler, who holds the key to his freedom. That’s easier said than done: James Whistler is hiding in Sona because there’s a price on his head, and Lechero is not about to help Michael find him. In addition, both Mahone and Bellick want to get to Whistler too. Meanwhile, T-Bag won’t allow a little humiliation stop him from insinuating himself into Lechero’s good graces.

Robin shows up with a date and this motivates Ted to ‘get back out there’. We also learn something major about ‘the Mother’.