After a scandal involving a bad secret service agent is uncovered, Special Agent Nash launches strict background checks on the other agents. Dag thinks he's got nothing to fear, until Nash's interrogation reminds him of a past incident involving drugs and his participation in an anti-government organization (which is seen through a series of flashbacks). Meanwhile, Judith arranges a trip to India with Camilla in an effort to drive a wedge between her and Steve, and Agents Morton and Cole find they share a common bond -- a fanatical fondness for Harry Potter.