Based in the year A.D. 3732, Peepo was the property of Space Academy, a futuristic school for young space cadets located on a man-made planetoid. Peepo assisted the aging space instructor Commander Gampu (Jonathan Harris) as he imparted his wisdom to the new recruits.

Peepo's was white in color, waist-high in height, had a square red plastic face, a pedestal foundation with wheels built into its base and spoke with a feminine voice. Peepo moved via radio remote control and hence became the first remote-controlled robot to be featured in a continuing role.

Peepo was later seen on the spin-off series JASON OF STAR COMMAND/CBS/1979-81. See also "W1K1"