Stardate: 43685.2. Worf is reunited with his long-lost brother when their father is charged with treason for helping the Romulans. Together they make an appeal to the Klingon High Council to challenge the charges, and have them revoked.

Stardate: 44995.3. Worf must choose between his people and the Federation when a civil war threatens to destroy the Klingon Empire.

Stardate: 45020.4. Picard suspects a Romulan influence in the recent Klingon civil war, and must force the Federation to intervene before the Empire collapses.

Worf attempts to regain his family honor while the fractured Klingon Empire faces the prospect of civil war.