Marine atomic tests cause changes in the ocean's ecosystem resulting in dangerous blobs of radiation and the resurrection of a dormant dinosaur which threatens London.
Top Cast
GE
Gene EvansSteve Karnes
AN
André MorellProf. James Bickford
LE
Leigh MadisonJean Trevethan
JO
John TurnerJohn
AL
Alastair HunterDr. C. A. Morris, the village doctor
LL
Lloyd LambleSenior Admiral, at the Admiralty
JA
Jack MacGowranDr. Sampson, the paleontologist
MA
Maurice KaufmannMini Submarine Officer
HE
Henri VidonTom Trevethan
PA
Patrick JordanPhoto Lab Aide
HO
Howard LangNaval Commader, at the "Valkyrie" wreck (uncredited)
LE
Leonard SachsDialogue Scientist at Conference (bit)
ER
Ernest BlythScientist at Conference (uncredited)
NE
Neal ArdenTV Newscaster (uncredited)
PA
Paul BeradiMan Listening to Car Radio (uncredited)
MA
Max FaulknerPLA Radio Operator (uncredited)
NE
Neil HallettDr. Sampson's Helicopter Pilot (uncredited)
AN
André MaranneFrench Radio Officer (uncredited)
DE
Derren NesbittThe Radar Operator, at the radar room (uncredited)
GU
Guy StandevenNaval Officer in Situation Room (uncredited)
