All ten episodes of the 1980 revised version of the 1970s cult classic science fiction series. The series follows brother and sister Dan and Helen (Stephen Garlick and Sylvestra Le Touzel) who find and make friends with an alien who they call Peep-Peep (Colin Mayes). The episodes are: 'The Meteorite', 'The Spinning Compass', 'The Man in the Sandpit', 'In Danger!', 'The Hold-Up', 'Where Is Tom?', 'The Hunt for the Car', 'The Lake', 'Captured!' and 'In the Spaceship'.