Brains and Lady Penelope find themselves involved in a rescue mission when the Arlington Bridge collapses, trapping the Martian Space Probe and its engineers in the river bed.
Cast & crew
David ElliottDirector
Peter DyneleyJeff Tracy / Professor Wingrove / NTBS Reporter / Crane Chief (voice)
Sylvia AndersonLady Penelope Creighton-Ward (voice)
Shane RimmerScott Tracy (voice)
David HollidayVirgil Tracy (voice)
Matt ZimmermanAlan Tracy / Bill Craddock / 2nd NTBS Reporter (voice)
David GrahamGordon Tracy / Parker / Brains / Dave Clayton / Frank / Chuck / Policeman (voice)
Ray BarrettJohn Tracy / Allington Bridge Controller / Kirby / Dr R. G. Korda (voice)
Christine FinnTin-Tin Kyrano / Grandma Tracy (voice)
