Someone has been tampering with the crystal matrix tables . . . Soon solar flares are raging out of control. As the world withers and dies under the intense heat, an unflappable British visitor arrives with curious knowledge about the troubled realm.

A runaway canoe sends Holly careening into the clutches of a mysterious young woman. "Meddy" implores the youngest Marshall to relax, to spend some time here in her garden admiring the remarkably lifelike statues . . . Will Holly realize her rescuer's true identity before it is too late?

A mysterious Captain tries to take Holly away on his flying ship.

Will and Holly find a crystal that holds the key to time travel, which they must use to save Cha-Ka from certain death.

Cha-Ka's evil side is unleashed after being bitten by a beautiful beetle.

Cha-Ka is invited to dine with the Marshalls. Meanwhile, Holly's perfume drives the locals wild!

When Dopey gets stuck in a tar pit, the Marshalls and Cha-Ka band together to try to pull him out.

A quiet day of fishing, trap building and cake making turns serious when Holly is pricked by a poisonous plant.

A troublesome baby brontosaurus follows Will and Holly home.

While fleeing from the jaws of dinosaurs, the Marshalls and the Pakuni are forced to work together.

The Marshalls have to barter with the Pakuni to reverse a drought.

When Rick stumbles into a pig trap with three Sleestak, Will and Holly turn to Enik and Ta for help rescuing him.

The Marshalls attempt to escape the Land of the Lost by river and wind up trapped in a cave with a daffy Confederate miner.

Cha-Ka and Holly become hypnotized by a baton-like object from a mysterious pylon.

Cha-Ka gets some help from Will and Holly stealing one of Big Alice's eggs to pass the Pakuni rite of manhood test.

When Holly spends the night alone with Cha-Ka, the Zarn causes a rift between Cha-Ka and Ta.

A deadly fever strikes Holly just as the Sleestaks make off with the family's medical supplies! Enik insists that the thievery is warranted, that tribute must be paid to Malak - a new, all-powerful god. Can Uncle Jack outsmart the Cro-Magnon con artist with some modern "magic" of his very own?

Will and Holly save a Pakuni ape-boy named Cha-Ka from Grumpy the Tyrannosaurus Rex.

When a mysterious energy hole appears in the ground and swallows Cha-Ka, Holly attempts a rescue.

While searching the temple in the Lost City, Holly gets a ring stuck on her finger and Cha-Ka unwittingly awakens the Builder.

When Rick is shocked by magical crystals, Holly is forced to bring him home while Will goes to Enik for help.

A yeti comes to call when Holly stakes claim to its unicorn

The Marshalls get caught in the middle when a feuding soldier and Indian wander into the Land of the Lost.

While fooling with a pylon, Will opens a time door that brings an astronaut and a hurricane to the Land of the Lost.

Following an earthquake, a specter that resembles Holly materializes and pleads for help.