After joining the Sparrow Scouts, Hilda partners with new pals Frida and David to clean up a park, little realizing what's lurking underground.
When David blames his nightmares on Hilda and her hair-raising exploits, she decides to try and help him face his fears.
Frida's messy room and missing book lead the gang on a ghost hunt that ends up putting their growing friendship to the test.
On the eve of an overnight camping trip, Hilda tries to help a down-and-out house spirit. Frida makes new friends. A mysterious beast prowls Trolberg.
When her pilfered stash of pills runs out, troubled Annie tries to quit -- but ends up blackmailing her way into the Neberdine study.
Tiny, invisible people threaten Hilda's fun and adventurous life in the wilderness with her mother and pet deer-fox, Twig.
Annia and Ellia continue their quest, and Owen's mafioso father pressures him to protect the family. Greta counsels a bereaved Gertie.
Diagnosed with schizophrenia, Owen is the black sheep of the wealthy Milgrim clan. After losing his job, he enrolls in an experimental drug trial.
Annie and Owen are Arlie and Ollie, grifters attending a sance at the mysterious Neberdine mansion in the s.
On parent-teacher night, Hilda springs into action when she discovers David's pet rock project hides a dangerous secret.
Owen and Annie take the C pill. No longer connected, he belongs to a Mafia family, and she's a medieval guide hired by an ailing elf princess.
After taking the B pill, Annie and Owen find themselves on s Long Island entangled in a strange caper involving a lemur.
Alone and lost in the wilderness, Hilda bumps into an old friend and asks for help getting home. Back in Trolberg, her worried mum looks for her.
When her favorite radio weather reporter goes silent amid a raging blizzard, Hilda decides to investigate, with David and the Raven in tow.
Muramoto notices irregularities in Annie and Owen's data. He questions Owen, who recalls the worst night of his life: his brother's engagement party.
Hilda realizes the importance of being detail-oriented when she casts a spell from a book of enchantments -- and fails to read the fine print.
As fear grips the city over the Black Hound, Hilda makes it her mission to help Tontu, even if it means having less time to earn Sparrow Scout badges.
Dara O'Brien and Hugh Dennis pick through the happenings from around the world this week in the company of Ed Byrne, Ed Gamble, Kerry Godiman, Nish Kumar and Rachel Parris.