Between Sophie and her lover Calvin are planets, not cities and countries. The red planet Mars is now colonized and made habitable for humans. Calvin also participated in a program on Mars and maintains his relationship with Sophie only through video calls. Disturbed by this situation, Sophie decides to go to Mars after Calvin after talking to Walt, the barista she met at the cafe she always goes to. But when he leaves, he gets a big surprise when Walt sneaks into the space shuttle that goes to Mars after Sophie and follows her.