The third in a series of 13 episodes Volcano by ALLAN PRIOR starring Paul Darrow
Jan Chappell , Michael Keating Jacqueline Pearce
Steven Pacey , Josette Simon with Michael Gough and Malcom Bullivant
For the Liberator's crew the planet Obsidian offers the prospect of allies and a safe base from which to work. But Obsidian holds a deadly secret.,
Series created by TERRY NATION Music by DUDLEY SIMPSON
Studio lighting BRIAN CLEMETT Script editor CHRIS BOUCHER Designer GERRY SCOTT
Producer DAVID MALONEY
Director DESMOND MCCARTHY