After a traumatic incident damages Leo Fitz's brain, he is fired from his job as a Scientist working for the U.S. Government. It's not that he isn't as smart as he used to be, he just can't find the words to explain what he's thinking. Leo realizes that if he can show everyone something stunning, he will get his job back and be able to fund his research. The two things Leo cares about most are science and his favorite coffee shop, Royal Café. When a new barista shows up, a girl named Jemma Simmons, Leo notices immediately. And when she wants to helps him out with his project, he discovers that she has a passion for science, just like him. As Leo and Jemma grow closer, Leo discovers that they are more similar than he could have ever thought. Can Leo put the past behind him, or will the accident haunt him forever? Can Jemma be the voice that he needs? Can she be his angel?