Anne finds out what's been tormenting amphibia since she left.

Amphibia will never be the same again

Sprig and Ivy go on an adventure and find a way to revive the miracle box little do they know they have awoken a new evil. With the calamity trios help will they defeat this new enemy or will this be the end of the multiverse The ships in this will be sashanne or sashanne, sprivy and yulivia

Anne, Marcy, and Sasha find a new version of the calamity Box

If you haven't watched "the hardest thing" yet for amphibia, I recommend you watch it first and you'll probably understand ALSO CREDIT TO MATT BRALY I DONT OWN ANY OF THESE CHARACTERS.