Famous '50s/'60s mystery and suspense series hosted by the master of suspense himlsef, Alfred Hitchcock. Each 30 minute episode included opening and closing monologues by Hitchcock who would explain some aspect of the day's story in his inimitably dry, humorous monotone. Episodes included: 'Wet Saturday', 'Fog Closing In', 'De Mortis', 'Kill with Kindness', 'None Are So Blind', 'Toby', 'Alibi Me', 'Conversation Over a Corpse', 'Crack of Doom', 'Jonathan', 'A Better Bargain', 'The Rose Garden', 'Mr. Blanchard's Secret', 'John Brown's Body', 'Crackpot', 'Nightmare in 4-D', 'My Brother Richard', 'Manacled', 'Bottle of Wine', 'Malice Domestic', 'Number Twenty-Two', 'The End of Indian Summer', 'One for the Road', 'The Cream of the Jest', 'I Killed the Count (1)', 'I Killed the Count (2)', 'I Killed the Count (3)', 'One More Mile to Go', 'Vicious Circle', 'The Three Dreams of Mr. Findlater', 'The Night the World Ended', 'The Hands of Mr. Ottermole', 'A Man Greatly Beloved', 'Martha Mason, Movie Star', 'The West Warlock Time Capsule', 'Father and Son', 'The Indestructible Mr. Weems', 'A Little Sleep'and 'The Dangerous People'.

Irwin Allen co-writes and directs this adaptation of Sir Arthur Conan Doyle's fantasy adventure. Professor George Challenger (Claude Rains) assembles an unlikely team of doubting scientists and explorers to investigate an area of the Amazonian jungle where he believes dinosaurs evaded extinction. Upon arrival the group are greeted with the shocking reality of the professor's sensational claims but are prevented from making a quick escape from the prehistoric creatures after their helicopter is destroyed. Stranded in the jungle, the group encounter hostile natives and even more dangerous creatures in the increasingly threatening environment as they try to devise a plan of escape...