Mary and Countess Marburg keep up appearances while continuing their covert battle for Salem.
As Walt and Jesse adjust to life out of the business, Hank grapples with a troubling lead.
Walt's family worries when he doesn't show up for Walt Jr.'s birthday; Jesse puts his lab skills to the test without Mr White's help.
Walt and Jesse team up on Gus; Walt finds an unexpected ally with Saul's help.
Walt takes drastic action to protect his secret and Gus; Skyler's efforts to solve Ted's financial problems hit a wall.