Lauren stages a stunning betrayal to steal classified materials from the CIA. Meanwhile, Vaughn comes face to face with his darkest demons in pursuit of his wife; Nadia must decide whether or not she can trust her father, Sloane, in the pursuit of Rambaldi's most priceless artifact; and Sydney receives a shattering revelation that will make her question everything - and everyone - she thought she could trust.

The oceanside wellness center takes on the fertility of one of its previous couples, Addison is conflicted about her status in the dating world and Cooper begins a secret affair.

A surprise guest shows up at a sad event as Bette gets stunning news about her job. Tina goes into a surprisingly difficult labor, Jenny finally reaches breaking point over her painful childhood memory, Alice struggles with her jealousy, and Peggy Peabody lays down the laws with her daughter, Helena.

SG1 attempts to rescue an Asgard scientist from the Goa'uld.