Star Trek The Next Generation Redemption (2013)

Loyalties are divided when civil war splits the Klingon Empire When Worf sees a chance to regain his wrongfully lost family honor he must choose between his duty as a Starfleet officer and his heritage as a Klingon warrior Meanwhile Picard struggles to keep the Federation from being dragged into the fray But a shocking new adversary from the past threatens to destroy both the Federation and the Klingon Empire