Voyage to the Bottom of the Sea - Season 3 - Eps 23: Doomsday Island
While Nelson and Sharkey search by air for an uncharted island, Seaview brings aboard a gigantic egg from the bottom of the sea during a routine specimen collection. It later hatches a fully grown, orange creature which kills a background guy and tosses Kowalski around the missle room. Nelson returns and (in a very un-urgent manner) has the crew hunt down this grunting thing as it terrorizes the crew. Later, Crane and Kowalski take the flying sub out to investigate the area, crash landing near the uncharted island. Another orange crature (one that speaks and is the leader) captures them and brings them to creature HQ. The monsters are aliens from Scorpious which are trying to hatch millions of eggs. Can the crew stop this invasion before these amphibian aliens take of the Earth?
About Voyage to the Bottom of the Sea

Title: Voyage to the Bottom of the Sea
First Air Date: 1964-09-14
Last Air Date: 1968-03-31
Status: Ended
Rating: 7.7/10 (from 121 votes)
Language: EN
Seasons: 5
Total Episodes: 110
Network: ABC
Genres: Action & Adventure, Drama, Sci-Fi & Fantasy
Production Companies: Irwin Allen Productions, 20th Century Fox Television
Synopsis
Join the crew of the Seaview aboard their super high-tech submarine, where no mission is too dangerous and no threat is too deadly, be it enemy agents, mad scientists, deadly sea creatures, or impending nuclear disaster.
Cast

Richard Basehart
Adm. Harriman Nelson

David Hedison
Captain Crane

Terry Becker
Chief Sharkey

Del Monroe
Kowalski

Paul Trinka
Patterson

Richard Bull
Doctor

Robert Dowdell
Chip Morton