When a decaying Russian satellite crashes on the island, the Professor uses a key component for a barometer. With that device, he learns that a massive wave is going to swamp the island. In desperation, the castaways lash their huts together into one structure in order to have any chance to ride the disaster out.
| Directing | Leslie H. Martinson | Director |
| Writing | Sherwood Schwartz | Writer |
| Writing | Elroy Schwartz | Writer |
| Writing | Al Schwartz | Writer |
| Writing | David P. Harmon | Writer |
| Production | Lloyd J. Schwartz | Producer |
| Production | Sherwood Schwartz | Executive Producer |
| Sound | Gerald Fried | Music |
| Camera | Robert Primes | Director of Photography |
| Editing | Marshall Neilan Jr. | Editor |
| Art | Stan Jolley | Production Design |
| Art | Anthony Mondell | Set Decoration |
