Voyage to the Bottom of the Sea Season 4 Episode 10
Terror
A scientist experimenting with plant life on a remote island has run into trouble. A shore party from Seaview arrives only in time to hear his dying warning that the world will be taken over in eight hours. Nelson brings aboard the only unusual thing he can find -- a red orchid, which proves to be a malign alien (that proceeds to take over his mind and those of the crew).
4 - 26No Way BackMar. 31, 1968- 4 - 25The Death ClockMar. 24, 1968
- 4 - 24Edge of DoomMar. 17, 1968
- 4 - 23Attack!Mar. 10, 1968
- 4 - 22Flaming IceMar. 03, 1968
- 4 - 21Savage JungleFeb. 25, 1968
- 4 - 20Man-BeastFeb. 18, 1968
- 4 - 19Secret of the DeepFeb. 11, 1968
- 4 - 18The Abominable SnowmanFeb. 04, 1968
- 4 - 17NightmareJan. 28, 1968
- 4 - 16The Lobster ManJan. 21, 1968
- 4 - 15Terrible LeprechaunJan. 07, 1968
- 4 - 14The Return of BlackbeardDec. 31, 1967
- 4 - 13Deadly AmphibiansDec. 17, 1967
- 4 - 12Blow UpDec. 10, 1967
- 4 - 11A Time to DieDec. 03, 1967
- 4 - 10TerrorNov. 26, 1967
- 4 - 9RescueNov. 19, 1967
- 4 - 8Time LockNov. 12, 1967
- 4 - 7Fatal CargoNov. 05, 1967
- 4 - 6Man of Many FacesOct. 29, 1967
- 4 - 5Sealed OrdersOct. 22, 1967
- 4 - 4Journey with FearOct. 15, 1967
- 4 - 3Cave of the DeadOct. 08, 1967
- 4 - 2The Deadly DollsOct. 01, 1967
- 4 - 1Fires of DeathSep. 17, 1967
