Rotten Luck (S03E04)

Jestro, alongside the Cloud of Monstrox, releases the devastating Forbidden Power known as Ravaging Rot upon Knighton, transforming the landscape into a sinister sea of green slime. However, Robin steps up with a brilliant new invention that may provide the Nexo Knights with the edge they need to combat this overwhelming threat. As the battle between good and evil intensifies, the fate of Knighton hangs in the balance, relying on Robin's ingenuity to turn the tide against the encroaching rot.