- The Mark of Captain Keel
The Robinsons fear a deranged sea-captain who has been living on the island.
- The Arrival
Franz Robinson is missing when the remaining family members reunite after surviving a shipwreck.
- Secret of Shark Island
Franz ventures by himself to Shark Island.
Elizabeth and Johann end up stranded in a fierce storm.
- Skeleton Clue
Johann forces the children to utilize their intellects to solve a mystery.
- Curse of the Idol
After they discover a mysterious idol, a series of unfortunate events plagues the Robinsons.
- The Visitor
The Robinsons find another castaway on the island.
- The Castaway
- Somewhere on This Earth
- The Intruder
- Terror on the South Island
The Robinsons are threatened by an army of ants that is devouring everything in its path.
- Shark Island
- Deadly Feast
After eating oysters that turn out to be poisonous, Elizabeth is near death.
- The Rogue
A bear that is too old to get food anywhere else on the island ventures into the family's compound.
- Captain Keel
- Weakest Link
Tensions rise for the family when Ernest becomes overconfident.
- Dead Man's Gold
Franz neglects his chores when he realizes there is a treasure on the island.
- Lost at Sea
Ernest uses his instincts to survive being stranded on a boat after a storm.
- 2nd Honeymoon
- Attack of the Cat
The family needs to reunite a cub that Marie brings home with its mother.
- Return From Paradise
- Cave of the Tiger
A rock slide traps Johann and Franz in a tiger's cave.
- Nature's Child
The Robinsons encounter a girl whose language is that of the jungle.
- Animal Kingdom
The family's livestock is threatened by a cougar that Franz has befriended.
- A Time to Live and a Time to Die
The children learn a lesson in life and death after Ernest brings home a pregnant goat.