Stardate: 43685.2 A Klingon first officer comes onboard the enterprise as part of the exchange program; he has some news for Worf about his family.

A strange young woman gets Mac involved with a priceless violin and an eccentric maestro being sought by syndicate hoods.

Donning their McQuaid brother aliases for one last time Hanson and Penhall discover a teenage girl who has kidnapped her baby sister to get her away from their abusive parents; while Penhall adjusts to becoming a father figure.

A worried viewer urges advertisers to boycott FYI for an upcoming piece Murphy has on sex education. Murphy flies out to keep the one sponsor they have for the controversial show.