[s4e1] The Three Impossibilities -

is the first episode of the fourth series (season) of the 2017 TV adaptation of The Worst Witch . It originally aired on CBBC in January 2020. Story Overview

The "Three Impossibilities" are a set of tasks left by the very first Miss Cackle. According to legend, completing them undoes any spells cast on that day. [S4E1] The Three Impossibilities

Involves navigating a complex stone template or grid found in an abandoned tower room. is the first episode of the fourth series

If Mildred fails to complete the challenges by dusk, the transformation spell becomes permanent, and her old self will be gone forever. According to legend, completing them undoes any spells

Disguised as "Ursula Catnip" (played by Lydia Page, replacing Bella Ramsey), she struggles with her new identity while trying to fix her mistake.

The episode begins with Mildred Hubble and her friends returning to Cackle's Academy. After a botched potions experiment, Mildred's appearance is permanently transformed into a girl named . To reverse the spell before sunset, she must find and complete three legendary "impossible" challenges. The Three Challenges