Zoologist Nigel Marvin travels back in time to visit deadly creatures of the prehistoric oceans.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | The Monster Who Came to Dinner | 1973-09-08 | 30 min |
| Season 1 | Episode 2 | Puppy Love | 1973-09-15 | 30 min |
| Season 1 | Episode 3 | Frankenstein Drops In | 1973-09-22 | 30 min |
| Season 1 | Episode 4 | Is There a Doctor in the Cave? | 1973-09-29 | 30 min |
| Season 1 | Episode 5 | Happy Birthdaze | 1973-10-06 | 30 min |
| Season 1 | Episode 6 | The Nasty Nephew | 1973-10-13 | 30 min |
| Season 1 | Episode 7 | Monster Rock Festival | 1973-10-20 | 30 min |
| Season 1 | Episode 8 | Ghoul School Days | 1973-10-27 | 30 min |
| Season 1 | Episode 9 | The Curfew Shall Ring Tonight | 1973-11-03 | 30 min |
| Season 1 | Episode 10 | Sweet Mama Redecorates | 1973-11-10 | 30 min |
| Season 1 | Episode 11 | Make Room for Big Daddy | 1973-11-17 | 30 min |
| Season 1 | Episode 12 | It's Your Move | 1973-11-24 | 30 min |
| Season 1 | Episode 13 | Trick or Treat | 1973-12-01 | 30 min |
| Season 1 | Episode 14 | Uncle Siggy Swings | 1973-12-08 | 30 min |
| Season 1 | Episode 15 | The Dinosaur Show | 1973-12-15 | 30 min |
| Season 1 | Episode 16 | The Wild Weekend | 1973-12-22 | 30 min |
| Season 1 | Episode 17 | Boy for a Day | 1973-12-29 | 30 min |
| Season 2 | Episode 1 | A Genie for Sigmund | 1974-07-07 | 30 min |
| Season 2 | Episode 2 | Paul Revere Rides Again | 1974-09-14 | 30 min |
| Season 2 | Episode 3 | Now You See 'Em, Now You Don't | 1974-09-21 | 30 min |
| Season 2 | Episode 4 | Johnny-O, the Great | 1974-09-28 | 30 min |
| Season 2 | Episode 5 | Super Sigmund | 1974-10-05 | 30 min |
| Season 2 | Episode 6 | Pufnstuf Drops In | 1974-10-12 | 30 min |
| Season 2 | Episode 7 | Sheldon and the Nephew Sitters | 1974-10-19 | 30 min |
| Season 2 | Episode 8 | One Way Whammy to Tahiti | 1974-10-26 | 30 min |
| Season 2 | Episode 9 | Cry Uncle | 1974-11-02 | 30 min |
| Season 2 | Episode 10 | The Haunted House | 1974-11-09 | 30 min |
| Season 2 | Episode 11 | Mother Makes Ten | 1974-11-16 | 30 min |
| Season 2 | Episode 12 | You Can't Beat a Magic Carpet | 1974-11-23 | 30 min |
| Directing | Jasper James | Director |
| Production | Tim Haines | Executive Producer |
| Editing | Andrew Wilks | Editor |
| Production | Adam Kemp | Executive Producer |
| Production | Jasper James | Producer |
| Camera | Peter Thorn | Director of Photography |
| Camera | John Howarth | Director of Photography |
| Camera | Michael Pitts | Director of Photography |
