Goodbye Bubbles is a one-hour special of the Powerpuff Girls. During a battle with an giant extra terrestrial monster, Bubbles was seemingly killed in the process as Blossom and Buttercup must learn how to defend Townsville without their sister.
At the Utonium house hold, Bubbles was crying that Buttercup had destroyed one of her teddy bears as the Professor makes Buttercup apologize as Blossom tells Bubbles to suck it up. Meanwhile, the Powerpuff hotline was ringing and the Mayor informs the girls that the city's under attack by a giant extra terrestrial monster. As the girls arrived, the monster shoots an eye beam at Buddies, seemingly killing her. Bubbes was still alive and wakes up to find herself into another dimension.