Sydney attempts to rescue Dixon's kids after they are kidnapped by Sark, Lauren's status as a double agent is put to the test when she learns that she has to work with her father, and Sloane is framed as a CIA mole.
Sydney and Vaughn must track Kazari Bomani down to get hold of a piece of the Rambaldi puzzle. Meanwhile, Jack reveals his suspicions to Senator Reed about his daughter Lauren's allegiances, and Vaughn decides what to do about his marriage.