When a visiting Colonel comes to the fort, O'Hara must hide Rusty & Rinty. How they were found is mentioned in one sentence.
Rusty plays one too many games so when something really happens the soldiers are reluctant to believe him.
Rusty and a new boy at the fort have a hard time getting along.
The troop rides out to investigate a dammed up river and encounters a former trooper with a grudge against Lt. Masters.
Rusty is attacked by a mountain lion and Rinty fights back.
Rusty gets a new teacher up to no good.
There's peace between the soldiers and the Apaches until it's time to elect a new chief. A hateful and prejudiced Apache tries to become the new chief.
A crooked trader tries to pin a murder rap on Rinty.
Rip and another Lt. clash with unexpected results.
A seasoned sailor comes to the fort looking for a crooked sea captain who's a slave trader.
Major Swanson's son, Jud, arrives at the fort as a new gung-ho recruit and has a hard time adjusting.
Cpl. Rusty becomes a blood brother with a young apache, whose life was saved by Rin Tin Tin.
Rusty develops a case of hero worship when an outlaw saves Rin Tin Tin from another outlaw.
The Comanches attack a mission that holds a sacred lance of peace between them and the white man.
Rin Tin Tin, Rusty, and an escaped prisoner, who claims he is being framed for murder, are lost in a severe dust storm in the middle of the desert. To make matters worse, they are nearly out of water, and Rinty is suffering from a venomous snake bite.
After Colonel Parker's wife demands that Rusty be removed from the base and placed under a woman's care, Rusty quickly arranges a wedding between a willing Indian maiden and an unwilling Lt. Rip Masters.
A medicine man and his daughter come to the fort fleeing a bandit that framed him for stealing.
The troops find a baby girl wandering in the woods.
Rusty and Rin Tin Tin climb up to the nest of an eagle that snatched and carried away one of Rin Tin Tin's pups.
Rusty believes he's resigning from the army, but an enlisted soldier can't resign, they can only go AWOL. He does this to help free RIP Masters being held hostage by renegade Indians.
Some bad guys attempt to swindle Sgt. O'Hara out of a ranch he is about to inherit.
The town barber and his wife rally the townspeople to build an opera house in place of a casino run by outlaws.
The troops escort a wagon train of young girls heading out west looking for husbands.
While testing a new signaling device, Rusty and Rin Tin Tin come across a marshal with a very dangerous prisoner.
A reporter arrives at the fort. The Indians refer to his camera as "The Magic Box".
RIP, Rusty and Rin Tin Tin help a Mexican town overcome an evil townsmen who has organized a group of bandits.
The soldiers help settle a confrontation between 2 town newspapers, one honest and one corrupt.
The wife of a missing miner, who is presumed dead, arrives at the post looking for her husband's gold mine. The outlaw who robbed and shot him thinks the wife may have received a letter with information about the mines location. Lt. Rip Masters, Sgt. O'Hara, Rusty, and Rin Tin Tin accompany her on the search using clues from her letter. The outlaws kidnap the wife but are stopped by Rinny and the troopers.
The troop accompany railroad men to a ghost town located in the path of a scheduled railroad track looking for the owner of the land. Mysterious phenomena seem to be the work of ghosts. Rin Tin Tin discovers a crusty old man who turns out to be the owner of the land and the town's ex-marshall.
Sgt. O'Hara brags that he is a military genius and then loses his stripes when he saves a fellow soldier because he did it by disobeying orders and risking the lives of 6 other soldiers.
Masters, Rusty and Rin Tin Tin seek to intercept a wanted doctor who has helped Rinty recover from a trap encounter before two ruthless bounty hunters can find him.
An unscrupulous attorney wanting to collect reward money fakes documents proving Rusty is the grandson of a rich woman.
Lumsden Hare plays Angus MacTavish, an elderly miner from Scotland, complete with kilts and bagpipe, lives in an old mystery mine. Everyone in the area is aware that a gold mine is supposed to be in the area, but even with widely available maps that purport to pinpoint the location it has not been found.
Rin Tin Tin goes on a long solo adventure, after being accidentally locked inside a boxcar of a train bound for Kansas City.
A new bugler, soon to retire from the Fort, hopes his bugling skills may save the troops from an Indian ambush, with the help of Rinty and Rusty,
Rusty and Rinny befriend an old man who's a Shakespearean actor. When he agrees to put on a benefit for Army widows and orphans, some unscrupulous men force him into a plot to take the ticket money.
2 wild stallions, one good and one bad, battle it out for control of a herd of horses.
Private Rin Tin Tin, Corporal Rusty, and Lieutenant Masters go undercover on a dangerous secret mission for the United States Government.
A rich kid and his poodle run away from home to join the Army.
Rusty is almost overrun by a herd of buffalo when he sees the legendary white buffalo atop a hilltop and the herd suddenly come to a stop.
Rin Tin Tin stops an assassin from shooting the President of the United States.
A former soldier betrays his brother, who's on an important military assignment, and takes his place in order to divert a shipment of gold for his gang.
An Indian who graduated from Yale kidnaps a soldier who was his classmate at school and refers to him as a Connecticut Yankee in King Arthur's Court.
Retired Marshall Higgins decides to run for Marshall against a villain who is also in the race.
Cpl. Boone faces a difficult choice: Either marry his longtime fiancée, or reenlist in the Army.
Cpl. Rusty is appointed honorary mayor for three days, as a result of winning first prize in an essay-writing contest.
Mr. Tubbs is the sole witness to testify in a bank robbery case. But the accused's gang come up with a fiendish plan to keep the old man from testifying against the robber at his trial.
Killer Stacy Chance breaks out of jail and it becomes up to Lt. Masters to bring his former friend in.
While searching for a Christmas tree Lt. Rip, Rusty & Rinty encounter an Indian couple who need their assistance.
Rusty tries to prove that an Apache chief's son is the grandson of a wealthy white woman.
Rusty tries to separate a beautiful actress from her unscrupulous fiancée.
Lt. Masters is transferred to another post, and he is replaced by an arrogant, know-it-all lieutenant.
Sgt. O'Hara's mother visits him at Fort Apache.
Cpl. Rusty turns himself in to the Apache tribe, after he mistakenly believes that he accidentally shot one of their braves during target practice. Little does he know, but the brave was actually shot by a member of the rival Comanche tribe.
When a miner's daughter gets lost in the mountains, Lt. Masters, Rusty, Rin Tin Tin, and the soldiers of Fort Apache go looking for her. They are joined by two prospectors whose sole motivation is to find The Lost Scotsman's Mine.
Rin Tin Tin finds a cache of dinosaur bones.
A land baron accuses an old woman of being a witch, as an excuse to burn her out of her home and steal her land.
Lt. Masters, Cpl. Rusty, and Rin Tin Tin travel to Vancouver in Canada. Their purpose is to give advise to the fledgling Northwest Mounted Police. While there, Rin Tin Tin kills a legendary white wolf and runs away with its pack as their new leader. Rusty is heartbroken. Part 1 of a two-part episode.
Still in Canada, Lt. Masters goes about his business, while Rusty hopefully awaits the return of his missing dog, Rin Tin Tin.
A very cruel man, who holds dog fights for a living, captures Rin Tin Tin to use as a fighter.
The action of a reckless gung ho general risks destroying a fragile peace accord with the Apaches. After Lt. Rip Masters resigns in disgust, Cpl. Rusty contacts President Grant in hopes he will intervene.
Four gunmen threaten the life of an old friend of Rusty and Rip Masters.
After all the Indian tribes in the Fort Apache area sign a peace treaty, the War Department orders the fort closed. All the men leave on furlough while waiting for reassignment. Then the Comanche Chief, Okoma, takes over the fort and joins forces with Chief Black Cloud to raid the surrounding territory. Major Swenson is ordered to retake Fort Apache.
Marshal Higgins and his deputy, Kid Hooker, start courting a charming widow. Hooker, who was once a desperado, decides to surrender his badge and return to a life of crime when he fears Higgins may marry the lady.
After Sgt. Powers has deserted to prevent his children from going to an orphanage, Masters is ordered to deliver him to a court martial detail and then finds a suitable orphanage for the children.
Rusty befriends Grey Fox, a Navajo who refuses to leave his peoples tribal ground.
General Tyne-Fyffe from India arrives at Fort Apache. Cpl. Rusty plans on capturing the blustery general's attention.
Sergeant O'Hara takes Rinty and Rusty with him on a gold-mining expedition to an abandoned gold mine. There they run into three desperadoes who have just robbed a bank.
Rusty and Rinty accompany a detail on a trip into town. Rip discovers Abel; the former town sheriff is concerned when his gun slinging son, Toby arrives. Rusty bumps into Toby at the stables and is immediately impressed with his guns. Toby mounts up but Rinty attracts his attention to a broken saddle strap. While waiting for the saddle to be repaired Toby goes to a local saloon and immediately attracts a large crowd.
Rusty, Rinty and Rip help Army major realize it was not his negligence which was responsible for massacre.
Brig. General Jack Lawrence pays a visit to Fort Apache with his young daughter, April Lawrence, in tow. She sets her cap for Lt. Rip Masters.
Elwood Masterson takes a lawman's job but doesn't have the experience to do it well. Masters and Rusty decide to help the young man out.