Atmospheric Breakdown

is an episode from season nine.

Plot
While napping outside, Tubb is awoken by a crash of a solid piece of the sky that broke apart. Tubb announces to everyone at the disco that the sky will break apart and reveal outer space. However, a mysterious force is the one behind this catastrophe, and the heroes must stop it to save and fix the sky.

Trivia

 * This episode is inspired by the folk tale "Henny Penny/Chicken Little", albeit with a few plot elements from the 2005 Disney film Chicken Little thrown in.