Jackie is a teenager that started working a minimum wage job at a waterpark and, despite her wishes, ended up running the entire place by herself. She is panicked, overworked, but... Somehow manages to keep things together. Usually. She is unfortunate enough to be a sane, capable person in a world of cartoony idiots.
In the pilot episode she is mostly freaked out as the responsibility of running the park first falls on her. If this is adapted into a series, she will become a recurring character and the initial wide-eyed fear will be replaced with the frustration of someone who's job sucks but they have no choice but to accept it.