Martha Mitchell struggles to balance the demands of a re-election campaign with that of her marriage. John Dean's ambition is tested as he finds himself drawn unknowingly into a conspiracy inside Nixon's campaign.

Martha and John rekindle their love and their power-couple working relationship at a campaign event in California, overshadowed by G. Gordon Liddy and his team bungling the break-in at the Watergate.

As John Mitchell and his subordinates struggle to manage the Watergate cover-up, Martha finds herself in a dangerous situation. John Dean puts his relationship on the back-burner.

Martha and John try to enjoy their new life away from politics, but Martha has trouble moving on from what happened to her in California. John Dean has a hard time moving on from his breakup.

Martha finally speaks out, putting a strain on her marriage. The FBI come closer to an answer on the real story behind Watergate and John Dean is forced to come clean to Mo on their Camp David honeymoon.

Frank Wills, the security guard who lost his job at Watergate after the raid, is having trouble. As Martha returns to her hometown in Arkansas, Mo faces something unexpected.