For a billion years, Jonathan Celestial has worked as a star, filling the night sky with warmth and light. Ostracized by all the stars because of a terrible event that unfolded many years ago, he is ready for a fresh experience. Excited to use the 30 days of vacation time he has accrued, he decides to fall to Earth and take on the form of a human. On Earth, Jonathan's cheerfulness and idealism collide with reality. He makes friends with the guitarist of a post-rock band, falls in love with a bookworm, and evades a governmental investigation which threatens to compromise his mission. Little does he know that his past and present are more connected than he initially thought, and soon he will have to confront the greatest challenge of his life yet: asking for forgiveness from someone he hurt.