Master Yoda sends several younglings led by Master Zia to continue their training at an outpost Jedi temple on Tenoo. Kai Brightstar, Lys Solay and Nubs catch a ride with Nash Durango and her droid RJ-83. Upon arriving on Tenoo, they stop Taborr Val Dorn and his pirate gang associates Pord and EB-3 from robbing a local cafe.

Kai, Lys and Nubs join Nash in a skiff race in the rivers of Kublop Spring. Master Zia allows the younglings to participate on the condition that they do not use their Force powers to cheat. Nash aspires to beat her wealthy rival Raena Zess, who has won the previous races for years. During the race, Raena cheats and gains the lead. Working together, Nash's Team Crimson Bolt are able to catch up with her, coming second place. After their ships get stuck in muddy banks during the race, the two teams are forced to put aside their differences to free their skiffs. Team Crimson Bolt ultimately wins the race. Raena accepts defeat and promises not to cheat again.

After Nubs falls sick prior to an upcoming school trip to the Kublop Geyser, Kai and Lys embark on a mission to acquire Yara tree leaves, which have healing properties. During the quest, the two navigate a nearby river which leads to a giant Tenoo tree, where the Yara tree grows at its top. Working together, the two younglings climb the giant tree and confront a territorial gangul beast. Following their successful mission, the younglings join their classmates and Master Yia in watching the Kublop Geyser erupt.

At Varna's invitation, Master Zia sends Kai, Lys and Nubs to help Gumar and Jam herd wellagrins on the snowy planet of Andraven. The children accompany seal-like Wellagrins on their migration through the mountains. During the mission, the group are scattered by an avalanche but work together to find the herd and Jam. After being caught in a second avalanche, they ride their Wellagrin steeds to safety. They reunite with Nash and their host Varna at a village on the other side of the mountains.

Taborr's gang steal jellyfruits from the Rodian farmer Weebo and her grandson, disrupting Kublop Springs' upcoming Jellfruit Festival. Nash, Kai, Lys and Nubs infiltrate Yarrum Tower disguised as pirates, befriending the friendly Abednedo pirate Chigg. They catch up with Taborr's gang, who attempt to flee with the stolen jellyfruit. In the process, their hover-sled spirals out of control, falling over the edge of Yarrum Tower. The Jedi younglings use their Force powers to levitate the jellyfruit crate to safety. Taborr and his gang are humiliated by the other pirates for their failure. As consolation, Nash offers Taborr a fruit and invites several pirates to attend the Jellyfruit Festival.

Kai learns to fly the Crimson Firehawk under the guidance of Nash. Due to his inexperience, he causes some damage to the starship. Back at the Tenoo Jedi Temple, Master Zia sends Kai, Lys and Nubs to collect Jedi Vector trainers from the Mon Calamari Zepher on Tenoo's largest moon. Durango flies her friends there and takes them on a test flight. During the test flight, Kai awakens a space slug while attempting a "throttle buster" maneuver. After the slug swallows his friends, Kai under Nash's guidance leads the space slug on a chase and frees his friends. Master Zia decides the younglings are ready to start flight lessons.

Kai and his friends dress a training droid as their enemy Taborr, much to the dismay of Master Zia. Zia invites Kai on a trip to a desert world to purchase a new cooling unit for the Tenoo Jedi Temple. During the trip, their Jedi shuttle is stolen by Ace Kallisto, an old acquaintance of Zia who has become a career thief. After Kai accidentally crashes the shuttle, Zia convinces him to put aside his distrust of Ace and work together to summon help. Ace saves Brightstar from being mauled by two large stalaat predators. Reflecting on their adventures, Kai learns that not all thieves are bad and comes to believe that Taborr is capable of changing.

Kai, Lys and Nubs accompany Aree on a mission to deliver several animals including a gargantua to Sil Gohtta's Nature Preserve. Solay befriends the gargantua during the voyage, whom she names "Garganchie." During a fuel stop on a desert world with red sand, two Besalisk siblings named Slaygh and Braygh stow aboard the ship and accidentally release Garganchie. After rampaging through the town, Garganchie flees to a cave. The Jedi younglings manage to find him but the Besalisk siblings frighten him again, causing him to go on a second rampage in the town. Lys convinces the locals to stay calm and Garganchie manages to save the Besalisks from falling down a tower. The Besalisks apologize for antagonising Garganchie and the group bring the gargantua to its new home.

After Princess Inaya's transport breaks down, she hires the services of Nash's shuttle Crimson Firehawk. Kai, Lys, and Nubs come along to help Durango host the princess. The group are pursued by Taborr's gang, whose starship Iron Talon damages the Firehawk's power couplings, causing it to crash in a forest meadow on Tenoo. Taborr's gang steals a present that Inaya had obtained for her father but she manages recover it with the help of the Jedi younglings. Inaya also demonstrates her knowledge of starships which she uses to help repair the Firehawk and disable Taborr's ship. The group return Inaya to her homeworld.

Marlaa plans to unveil a new sculpture on Visitor's Day. Posing as an art dealer, the art thief Draiven Bosh and his droids K-2PI and R4-13 steal the Visitor's Day Sculpture. Lys, Kai and Nubs give chase but end up trapped aboard Draiven. Kai contacts Master Zia for help, who tells them to distract Draiven till she arrives. Working together, the younglings distract Draiven until Zia arrives. Following a confrontation, they manage to recover the Visitor's Day Sculpture and other stolen artifacts but Draiven manages to escape. Zia reassures Lys that she can always ask her for help.

Nash's new speeder is stolen by a young boy named Ori, who has been coerced by a biker gang known as the Ganguls. The Ganguls, led by Sellaccc Orryak, control the nearby town of Aklyrr Bend, where they pillage and terrorize the citizens. Nash and her Jedi friends find Ori, who tells them about the situation. The four are captured by the Ganguls but convince Ori and the townsfolk to stand up to the gang. The gang flee and abandon their loot including Nash's speeder following a chase. Nash and the Jedi celebrate with Ori and the townspeople.

Kai, Lys, and Nubs travel on a train carrying logs to be used by villagers as building material. On the way to the village, their train is boarded by Taborr and his gang. During the ensuing heist and skirmish, the two train carriages are separated after Taborr accidentally loses the coupling. Kai and Taborr are separated from the others. The two enemies are forced to work together to power up their carriage. Kai learns that Taborr is not as selfish as he thinks while Taborr questions his life choices. After the two groups work together to reconnect their carriages, Taborr's gang briefly turns on Kai but ultimately decide to let the Jedi transport the logs to the villages. Following their adventure, Kai and his friends reappraise their conflict with Taborr.

Nubs discovers that his favorite Tenoo tree is unwell and that the ground is shaking. Together with Kai, Lys and Nash, he discovers that the Gozzo businessman Raxlo has been harvesting the giant tree's sap for profit. The harvester's powerful drill has been causing earthquakes and Raxlo has plugged the underground water with a boulder, causing an imbalance that threatens the tree. Following a rockfall, the younglings are able to convince Raxlo of the errors of his way. Working together, they join forces to unplug the boulder, allowing the water to flow freely again. During their escape attempt, Raxlo is forced to abandon his sap cargo so they can escape to the surface. Raxlo and the Jedi younglings depart on good terms but he keeps some sap for himself.

Jedi Master Loden Greatstorm and Padawan Bell Zettifar visit the Tenoo Jedi Temple. While Master Zia takes Master Greatstorm, Lys and Nubs on a tour, Kai befriends Zettifar and the two spend time together practising with Force techniques including hurling. After Bell's pet charhound Ember gets lost in the forest, the two boys search for the dog together while honing their Force techniques.They find Ember but stumble onto the habitat of a Gangul. Working together, the two Jedi use the Force to levitate a large log in order to draw the Gangul away from Ember. The two then return for a lesson by Master Greatstorm.

Following a Jedi lesson with Master Yoda, the Jedi younglings join Nash and RJ-83 in coming to the aid of Zepher, who is being robbed by the Nihil pirates Jaay and Fleever. Against Yoda's orders, Nash interferes in the confrontation with the pirates, who escape on two stolen Jedi Vector starfighters with Zepher. With the guidance of Yoda and her friends, Nash pursues the Nihil through an asteroid field. Yoda uses the Force to open the pirate ship's rear hatch and recover the Vectors and Zepher. The Jedi and Nash help clean Zepher's store.

The Jedi younglings go on a tour of Ootoo Prime's gem mines with miner Ayva Ackler. While investigating recent hauntings by a purported Shadow Beast in the Opal Cave, they discover that Taborr and his gang have staged the hauntings in order to steal Ootooan opal gems. While Kai and Lys confront Taborr, Nubs alerts Ayva and the other miners. The miners scare Taborr's gang away and reclaim the stolen gems. The younglings receive their own gems as a reward.

The Jedi younglings and Nash travel to Starlight Beacon for a guided tour. On the way, the group responds to a distress call by a group of reformed pirates led by Chigg. Following a misunderstanding, the group learn that the pirates have gotten their ship stuck in the mud while harvesting rare fruits on the planet Galjaero. During a rushed rescue, Brightstar and his friends cause the ship to slide down into the den of a tentacled creature. They make a second attempt and manage to use Nash's ship Crimsom Firehawk to retrieve the pirate ship with a tow cable. The younglings and reformed pirates then undergo a tour of Starlight Beacon with Jedi Master Esatala Maru.

Kai, Lys and Nubs accompany their fellow Jedi initiates to the planet Kondoraan for sky skimming lessons with the Nautolan Rix Tegano. During their lesson, Kai and his friends forget Rix's lessons about flying with the wind and attempt to follow a flock of flying fish known as chiffons. Flying against the wind, their sky skimming boards' wings are damaged. The trio travel through a desert back to Rix's platform but find their path blocked by a crater. After unsuccessfully trying to ride some chiffons, they use their cloaks to mend their boards' damaged wings. The younglings return in time for dinner.

Kai, Lys and Nubs accompany Master Zia and Yoda to attend a Life Day celebration on Kashyyyk. Lys befriends a local Wookiee named Johgeshakka ("Jo"), who is old enough to hang a Life Day Orb on the village's Life Tree. Lys accidentally causes Jo to drop her orb, which falls down the tree into the village market. Working together, Lys and her friends search for Jo's orb but it gets scratched in the process. Lys is guilt-ridden by her role in the accident but Jo is grateful to her friend. Though the Wookiee Chief Whitaggikk is unable to repair Jo's orb, they learn that the orbs remind everyone of the love they have for each other.

The Jedi younglings and Master Zia respond to an earthquake that has devastated a village on the planet Vuundalla. After meeting with villager Renaad and his daughter Mina, the Jedi attempt to convince the indulgent King Pychor and Queen Dafne to aid the villagers. The monarchs send their son Prince Cyrus to inspect the situation. Moved by the plight of his people, Cyrus steals building materials from the royal family's stables following a fight with security droids. When confronted by his parents, Cyrus convinces them to help the villagers. He also develops a friendship with Kai.

The Jedi younglings take part in a wilderness training exercise on Tenoo. Kai is paired with Nubs. Their journey quickly goes awry after their holomap is damaged and the two survive a crumbling suspension bridge. Following an argument, Kai and Nubs part ways. While Nubs safely reaches their rendezvous point, Kai is trapped in a tree by a pair of quadraped ganguls. Using teamwork, Nubs along with Lys and Djovi drive away the ganguls and rescue Kai. Kai and Nubs reconcile and complete the wilderness exercise before sundown.

The Jedi younglings travel to Batuu where they are guests of Jedi Master Carver Drow and his Padawan Celesta Kami. Drow sends Celesta and the younglings to obtain equipment for an expedition in Black Spire Outpost and to befriend the locals. They encounter the unscrupulous businessman Ozon Nimbee, who attempts to convince the locals to cut down the town's iconic spires as part of his real estate development project. Celesta exposes his true agenda to the Batuuns. Unable to win them over, Ozon sends his droids to chop down the town's spires. With the help of the Batuuns, the Jedi defeat Ozon's droids and send him packing.

The Jedi younglings visit Black Spire Outpost where they train under Master Drow and Padawan Celesta. While Kai successfully bests two training remotes during a public exhibition, he struggles to keep pace during a more complex lightsaber sequence. Kai is upset because he believes that he has to be perfect to be a great Jedi. Master Drow disagrees and takes Kai to a Force-strong cave to meditate on his feelings and ambitions. Kai encounters Bell Zettifar, Djovi Resmia, Taborr Val Dorn, and Master Yoda in a series of Force visions. Through these visions, Kai learns that Jedi do not need to strive for perfection to succeed.

During the Starship Show, Nash introduces her uncle Luggs Neelo to her Jedi friends. Luggs has acquired a rare XD-7 speedster. After the starship is stolen by conman Draiven Bosh and his droids, the Jedi younglings team up with Nash, RJ-83 and Luggs to recover the starship. Bosh takes the stolen ship to the Ugnaught Eunice Ino to remove its lock. Unwilling to fly the ship, Luggs proposes attaching a tow cable so that Nash's Crimson Firehawk can tow the speedster out of Eunice's garage. When the tow cable is broken during a confrontation with the thieves, Nash convinces Luggs to fly the ship out. As a reward, he allows his niece to fly the ship together.