After the first engineer dies right off the bat, Billie is in charge of making sure that the ship is running properly. Even more responsibility falls on her hands when she finds out the captain isnt actually a captain and that shes the only one on the ship who actually knows what she is doing. Not only does she now have to do her job and the job of engineer one, she also has to keep the ship flying since the captain is a sham.
The problem is that no one listens to her and her work often goes unnoticed. She's also very straightforward and doesn't have much of a sense of humour, so she often goes unnoticed among the more over the top characters. The show is a comedy so the situations they get themselves into are rather ridiculous, but more often than not, shes the one who saves the day. Billies work is underappreciated. Even though the captain isnt a real captain, the passengers think he is. So because he is supposed to be the man in charge, he gets all the credit for the work of the women on the ship, especially Billie.
