![Cells at Work! CODE BLACK](https://www.113movie.com/wp-content/uploads/lZQKzmE3P5CJ9Bj0wK4jMZuengp-185x278.jpg)
Fionna and Cake – with the help of the former Ice King, Simon Petrikov – embark on a multiverse-hopping adventure and journey of self-discovery. All the while a powerful new antagonist determined to track them down and erase them from existence, lurks in the shadows.