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Blake (Gareth Thomas) finally arrives at Star One, the location of the Federation's control center. Almost simultaneously, Star One is invaded by an army from another galaxy. This puts Blake in the untenable position of saving the hated Federation from the invaders -- a dilemma that is only made worse by the arrival of his old adversary, Travis (Brian Croucher). Like the final episode of Blakes 7's first season, this climactic installment of season two ends with a cliffhanger. Representing the last regular series appearances of Gareth Thomas as Blake (who would, however, make two crucial guest appearances in future episodes) and Sally Knyvette as Jenna, "Star One" originally aired on April 3, 1979.