With Judy and Clarence long missing, Marsh tries to console panic-stricken Jenny by relating tales of the unlikely duo's past adventures.
Dr. Tracy's former pet tiger comes back after three years in the bush, leaving Mike and Marsh to wonder about the reason for her return.
Marsh's attempts to save the seriously ill son of a chief are complicated by confrontations with an angry medicine man and black magic.
Two wildlife-documentary filmmakers plan to take advantage of Judy's discovery of a cave full of artifacts to boost their own careers.
Wameru Reserve is left dry when a chief engineer refuses to admit he erred in calculating the watershed during a native resettlement.
Dr. Tracy rescues from a leopard attack a teenage storyteller (Glynn Turman) who was banished from his village; guest Adolph Caesar.
Jenny and the animals are in danger when they try to stop a rancher (Alan Hale) from fencing off his land for a private hunting preserve.
Jenny, mistakenly believing she is to be sent back to the orphanage, takes Judy and a lion cub and runs to her treehouse in the bush.
A father (Stephen McNally) who wants to make a real man out of his estranged son finds his own courage tested while on a camera safari.
Adam and Judy conspire to conceal a runaway orphan boy while they try to convince a native couple to adopt him; guest Louis Gossett Jr.
A wealthy idealist seeking to recruit Bart for an army finds himself unable to accept the violence he sees while observing a lion pride.
A newlywed big-game hunter comes to Marsh for help after losing his pet cheetah, unaware that his bride has secretly set the animal free.
A thrill-seeking author (Allison Price) visiting Wameru endangers Jenny's life in a search for excitement to fill her upcoming novels.
Clarence and a tribesman-turned-poacher discover lessons in survival when they become prey and predator during a trek through the bush.
Orphan girl Jenny Jones (Erin Moran) rushes to save the cub of a killer lioness being stalked by a government-hired hunter (Ross Hagen).
Mike and Jack's argument over heredity and environment is put to the test when they encounter a tame tiger that has reverted to the wild.
Pressured by his brother's need for money, a native dresses as a monster gorilla in an attempt to entice tourists to visit his village.
Judy tries to feed a starving lion driven to Wameru by a drought, but her efforts almost cost the chimp her life; guest Alfred Daniels.
Dr. Tracy is faced with a dilemma when he must operate on a dog with a brain tumor, knowing it will recover and resume killing lions.
Toto's ability to ward off leopards after being doused with repellant causes her to be mistaken for the reincarnation of a great chief.
Dr. Tracy must find a way to stop a young cheetah from killing domestic cattle before an embittered local rancher takes deadly measures.
Judy and the other animals devise a plan to prove they are superior to an electric alarm system installed to protect a valuable vaccine.
Dr. Tracy attempts to save a valuable lioness stalked by a former boxing champion (Ron Hayes) seeking revenge after being attacked by the animal.
Medicine supplied by Judy to a banished native chief makes the man feel strong enough to challenge his rival for leadership of the tribe.
Marsh's old university professor (Harold Gould), supposedly searching for an elephant graveyard, chooses to keep his true purpose secret.
An unknowing nun (Jan Clayton) pays off Wameru's debts with stolen money, putting the staff in danger from police and the original thief.
Marsh and the Wameru staff race to save the elephant herd from the district official's maze of land mines and explosives.
Tracy is caught between his convictions and the intentions of an old friend sent to destroy a rampaging herd of elephants.
Runaway Clarence must choose between life in captivity and a position as head of a pride when he is 'adopted' by three wild lionesses.
Judy suddenly takes the place of an aging performing chimp whose magician owner (Gil Lamb) refuses to accept the truth about his partner.
Paula soon regrets banishing the flower-smashing duo of a hippopotamus and a donkey when the pair looks to be likely prey for a leopard.
Despite his misgivings about an Italian countess's insatiable drive to win, Dr. Tracy agrees to treat her ailing champion Thoroughbred.
Jack and Mike test a theory by releasing a cub rescued from a brush fire back into the bush to see if it returns to its old territory.
Two former convicts (Sterling Holloway, Leonid Kinskey) plan to return to their comfortable cell by being convicted of stealing Clarence.
The Wameru staff searches desperately for a berry bush whose poisoned fruit has brought Judy to the point of death; guest Karl Swenson.
A strange bond forms between Marsh and a native hunter (Percy Rodrigues) as they stalk a phantom leopard into a drought-stricken jungle.
Dr. Tracy's new game-warden trainee fails to get along with the wild animals, until a wolf's attack helps him to regain his lost courage.
Unhappy over space experiments with chimps, Judy runs off with a native and finds herself made ruler of a tribe worshipping chimpanzees.
Mike's college friend (Clarence Williams III), a famous African journalist, comes to Wameru to prove the work done there is pointless.
While Marsh and Paula try to save Hedley from forced retirement, Judy releases a royal lion cub and attaches a ransom note to Clarence.
A leopard cured by Dr. Tracy of a brain ailment returns to the compound seeking her cub, which has been adopted by surrogate-mother Judy.
Judy is mistaken for a valued chimp astronaut whose malfunctioning space capsule landed by mistake in the compound; guest Robert Clarke.
Judy and Paula court disaster when they violate the laws of nature and try to save a starving lion cub from mistreatment by its mother.
Paula must work alone to create a lifesaving serum after Clarence becomes infected with a virus carried by his new friend, a vulture.
Several attempts on the lives of Wameru's tigers make Marsh suspicious of a young Indian guest (Harvey Jason) visiting the study center.
Insulted Clarence and Judy disappear just before Clarence is to donate blood during difficult surgery on a rare, valuable royal tiger.
Jack, Mike, Judy and Clarence become substitute mothers after they witness an ostrich's death and take on responsibility for her eggs.
Jack meets unexpected obstacles when he rushes to rescue smitten Mike from the clutches of a deceitful female visitor (Janet MacLachlan).
Dr. Tracy calls in Hedley to solve the mysterious disappearances of experimental wildlife, keys and sedatives from the Wameru compound.
Marsh searches frantically for stolen diamonds hidden by Judy, while the thief holds Hedley, Paula and Jack hostage; guest Alan Caillou.
Dr. Tracy is unable to help a wounded baby Indian elephant when its experimental African-elephant family refuses to let anyone come near.
Paula and Judy struggle to return Marsh to the compound after a jeep mishap leaves him suffering from delirium because of a head injury.
Paula is in a race for her life when a dam engineer sets off a charge two hours early and sends a wall of water hurtling across the bush.
Both Paula and Hedley employ Judy in their plans to prevent two former German soldiers from retrieving diamonds hidden during the war.
Clarence lies wounded in a village inhabited by lions after being speared in a trap while following a wounded lioness from the compound.
Husband-and-wife poachers (Michael O'Shea, Virginia Mayo) invade the Wameru Center in search of a baby gorilla that has eluded capture.
Mike becomes trapped in the bush beneath an overturned truck and must rely for his life on Clarence carrying a note back to the compound.
A former TV comedian (Morey Amsterdam) nearly costs lives when his bumbling interference with Wameru's wild animals suddenly backfires.
Evidence weighs heavily against Clarence when he is accused of being the visually impaired lion that has been raiding a nearby village.
Paula falls victim to a spider's bite, and the only man who can save her is a doctor banished for wrongly diagnosing a chief's illness.
Dr. Tracy, Clarence and Judy rush to find an ailing, escaped circus bear before it becomes the victim of bounty hunters hired by local ranchers.
A woman asks Dr. Tracy to escort her on a photographic safari, while secretly planning to use the trek to hunt down a phantom leopard.
Worried Marsh, Mike and Clarence set out to find Jack and Judy whose jeep broke down in the desert as they were returning to Wameru.
Greed prompts a man to try to take over his chieftain uncle's lands by sending one of Dr. Tracy's elephants on a drug-induced rampage.
Paula, Judy and Clarence are the first to find a lost, pregnant former circus panther as she is about to give birth alone in the bush.
Using Clarence as an example, Mike allows a boy accused of cowardice to believe that a handclap will send a lion running into the bush.
Judy wreaks havoc by heading into the bush with a prize cheetah belonging to the leader of an African tribe; guest Raymond St. Jacques.
The animals and people of the Wameru Center begin a desperate search for Judy, who was mistakenly injected with a fatal strain of virus.
Dr. Tracy and Judy become the prey of an insane hunter when they enter the bush to investigate reports about a tiger; guest Jack Kelly.
Marsh and the Wameru staff rush to recapture tame cattle released on the reserve before wild predators slaughter the livestock.
Clarence suffers amnesia after being struck by Mike's truck then attacks Paula and drives her into a pit with a wild leopard cub.
Marsh, Jack and Judy face death from thirst and starvation when an insane revolutionary (Theo Marcuse) imprisons them in a deserted cave.
The two hunters who set the bush fire capture Paula, Jack and Judy, and plan to cover their arson by murdering the trio.
The staff of Wameru Center battles a raging brush fire set by poachers aiming to drive a rhinoceros herd into their sights.
Judy is blamed for the disappearance of an injured hyena who came between the jealous chimp and Paula.
Two bush characters with their eyes on Dr. Tracy's $75,000 grant kidnap Clarence and Judy for ransom.
Marsh is happy when a a trade representative and his daughter lodge at the compound until he learns they plan to kill a leopard.
A sophisticated magazine photographer's (Doris Dowling) determination to get action shots nearly costs Hedley and Clarence their lives.
Paula follows Marsh's instructions to remove the bullet then is taken hostage by the convicts as they race for the border.
A convict (Ron Hayes) who was once captured by Dr. Tracy is wounded in an escape and comes to the Wameru Center for help.
An injured dog taught to be a killer by its lonely, embittered master is found by Paula and Jack and learns kindness during its recovery.
Judy cuts short her visit with a wild chimp family when she must bring the youngest back to the compound for medical attention.
A pilot (Paul Winfield), unknowingly flying diamonds for smugglers posing as scientists, is knocked unconscious after crashing in the bush.
Two archaeologists (Peter Brocco, Marian Moses), fearing leopard attacks, hire a hunter (Harry Lauter) to slaughter the local predators.
A suspected murderer loose in the area comes upon Marsh and his guest (Dina Merrill), who has broken her leg in a trap; guest Ron Hayes.
Judy and Clarence come to the compound with three lion cubs whose mother has been snared by poachers (Sean McClory, Lawrence Montaigne).
A farmer vows to kill a pet lioness after a brain tumor causes the animal to lose control and attack; guests Alan Napier, John McLiam.
An injured poacher nursed back to health in the compound disappears with Judy shortly before the study animals are stolen by bandits.
Dr. Tracy, Paula and Jack search for the parents of a baby elephant and encounter two men illegally stealing animals to sell to zoos.