While on a mission, three astronauts in their spaceship get caught in a time vortex. They return to Earth in the year 3979 A.D. and discover that intelligent apes are now the highest form of life.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Flames of Doom | 1975-09-06 | 30 min |
| Season 1 | Episode 2 | Escape from Ape City | 1975-09-13 | 30 min |
| Season 1 | Episode 3 | The Unearthly Prophecy | 1975-09-20 | 30 min |
| Season 1 | Episode 4 | Tunnel of Fear | 1975-09-27 | 30 min |
| Season 1 | Episode 5 | Lagoon of Peril | 1975-10-04 | 30 min |
| Season 1 | Episode 6 | Terror on Ice Mountain | 1975-10-10 | 30 min |
| Season 1 | Episode 7 | River of Flames | 1975-10-18 | 30 min |
| Season 1 | Episode 8 | Screaming Wings | 1975-10-25 | 30 min |
| Season 1 | Episode 9 | Trail to the Unknown | 1975-11-01 | 30 min |
| Season 1 | Episode 10 | Attack from the Clouds | 1975-11-08 | 30 min |
| Season 1 | Episode 11 | Mission of Mercy | 1975-11-15 | 30 min |
| Season 1 | Episode 12 | Invasion of the Underdwellers | 1975-11-22 | 30 min |
| Season 1 | Episode 13 | Battle of the Titans | 1975-11-29 | 30 min |
| Production | Friz Freleng | Producer |
| Production | David H. DePatie | Producer |
| Writing | Pierre Boulle | Characters |
