Star Trek: The Next Generation

Season 3, Episode 17

Episode Title: Sins of the Father

Air Date: 1990-03-19

Overview:

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.