Blake's 7: Duel.

Supreme Commander Servalan assigns the task to the deadly Travis-his orders simply to seek, locate and destroy Blake's 7! Travis and his Mutoid crew clash with Blake in a crucial struggle over the Federation's secret cypher machine and again in desperate hand-to-hand combat on a mysterious dead planet. Finally, they confront each other on a barren ice world as Blake attempts to rescue the resistance leader, Avalon. This time, however, Travis is expecting him, and a terrible trap awaits. . .