Lucy's suspicious behavior prompts Oscar and Hedgehog to investigate whether or not she's the kingpin of a secret society.
On a trip into the world of Dungeon Doug, Oscar and his dad find themselves on a father-son bonding mission.
Hedgehog endures her first magic lesson with Susie, while Oscar sets out to save her seat for a mut-see event: Acorn Graduation!
While Hedgehog and Max scour the island in search of a missing tub, everyone is dying to know: are things weird between them?
On the eve of the Spotted Bear Stretch, Oscar and his pajamas are stuck at Susie's place as unwelcome house guests.
Oscar's fib about his last baby tooth alerts the Molar Mole Fraud Squad, and Hedgehog jumps to his defense at a kooky mole trail.
While Oscar helps Hedgehog find her wand, Susie tries to convince the Meeting of the Minds that Hedgehog isn't responsible enough for magic.
To help Ava overcome stage fright, Hedgehog takes Ava's violin into her own hands, while Oscar calls in for some reinforcements.
After making Oscar's tortilla towel dreams come true, he and Hedgehog find that running a business is harder than they thought.
When Ice Cream, the Icelandic fixer, returns to collect his debt, the team is forced into a life and death race around the world to solve a series of puzzles and recover the infamous stolen Gardner paintings.
Sandi Toksvig invites viewers to join her in the QI restaurant, with Alan Davies, Phill Jupitus, Sara Pascoe and Mark Watson.
Vera leads the Order in a spell to summon Rogwan, a powerful demon. But when her plan goes awry, she needs the Knights on her side.
Amid a standoff with the Prometheans, Alyssa goes into withdrawal. Meanwhile, Randall, Hamish and Gabrielle track professor Foley.
The Knights try to prevent a strange affliction from spreading. Kepler schemes to strip Vera of her power, and Alyssa searches Vera's house.
The Knights raid the Order’s magic vault, Alyssa confides in Randall about her fading powers, and romance blooms between Lilith and Nicole.
While the Knights look for ways to protect themselves, Alyssa gives Jack a job: find the "magic tourist" who's been wreaking havoc on campus.
After having the Knights' memories wiped, Vera plans to induct them into the Order. But her new pledges prove hard to control.
Nicole finds a spell that could bring back Lilith, but it hinges on Alyssa’s cooperation. Jack tries to broker a deal between Vera and Salvador.