In a flashback to years prior, Wendy struggles with depression, Del asks Marty to be his financial adviser, and Agent Petty faces a family crisis.
Buddy makes changes in response to the publicity the show brought to the EMCC program. The Lions are forced to play short-handed in the season opener.
Marty finds a way to control Ruth. Wendy worms her way into a job. Looking for another business to invest in, Marty digs for info on the strip bar.
After his business partner cheats a dangerous client, financial adviser Marty must devise a radical plan to save the lives of himself and his family.
Autumn brings both the rice harvest and Chuseok, Korean harvest festival, the most important festival of the year. In his Gangnam kitchen, John makes japchae - Korean glass noodles.
Reg goes on his first cave raid. Meanwhile, Riko makes preparations to go into the abyss to find her mother.
This trip, Guy Fieri's grabbing all kinds of outrageous grub. In Maui, Hawaii, a funky joint puttin' out ridiculous ramen and the bomb beer can chicken. In Los Angeles, an off-the-hook food truck putting a twist on fish and chips. Plus, a downtown barbecue spot smokin' up the belly and frying up the chicken.
Fern reveals his ability to change his appearance to look just like Finn. Impressed, Finn joins Fern to a dungeon hidden away in a mountain. While there, Fern traps Finn in one of the rooms and reveals his plan to replace him. Finn finds out that his robotic arm can do a variety of things and drills his way out of the dungeon. Finn and Fern fight out in the field where Finn attempts to reason with Fern, however his robot arm misinterprets the word "finality" with "fatality" and he ends up destroying Fern. Finn returns home traumatized with Jake and BMO comforting him. Meanwhile, a mysterious man (voiced by Fred Melamed) scoops up Fern's still living remains in a bucket.
Fred's worst nightmare comes true when an evil spirit possesses the Mystery Machine and turns his beloved van into an unrelenting monster.
Niko's team reaches Carapace, the perfect hiding spot, only to discover the voracious Mugwhump In its place. Chompsky, Carapace's last citizen, helps Niko and Lyra face this bloated menace, and discover a better goal than hiding.
Mandok accidentally releases Niko from a magical chrysalis. Instead of a fully-grown Champion of Carondolet, ghostly princess Lyra finds a ten year old boy. Lyra must lead NIko across the Bridge of Doom, but when the horrible Xerxes returns and attacks, Lyra has no choice but to put her faith in untested Niko.
Lyra must guide Niko, Mandok and Flicker through a deadly sky maze, past the fearsome Arachtaur, as a vicious three-headed monster stalks the team. When the quest almost fails, Lyra makes a tremendous sacrifice.
Niko, Lyra and Mandok help the Tumblebees fend off the terrible Prickletwister that has been terrorizing the town, and join forces with a mysterious traveler.
Featured magicians: Jason Bishop, Barry & Stuart, Ed Alonzo, Nathan Burton, Farrell Dillon, Shawn Farquhar, and Les Arnold & Dazzle.
The Hill Giants send Niko and Lyra into the Shoodakooda Wood, where their greatest regrets become real. With the help of Niko and his Sword, Lyra puts her past behind her. Meanwhile, Mandok is captured by an enemy.
Niko and Lyra are received by the Shrimp King, only to learn the Shrimpfolk are about to engage in a futile battle with the ferocious Mantigore to finally free the captured Dolphin Queen. Mandok forms an uneasy alliance.
Niko's new sidekick leads the team through the Endless Expanse, as Nar Est's agent tries to stop them at every turn. When the enemy reveals himself, Niko must defeat a threat from within, without his Sword.
Coming close to the Pools of Destiny, Niko and Lyra find another human - Aura, a champion who was left behind. But it's Niko who's left behind when Lyra and Aura set off to finish the quest without him.