Skye Aitken is a teenage girl who is told that she has reached the final stages of her cancer and has little time left. Calvin Lewis is a young man working as a baggage handler at the airport alongside his father and elder brother Frank. At work, Calvin has a crush on Izzy the flight attendant, but has difficulty talking to her. Calvin struggles to interact with others since he has a constant fear that he is dying. His doctor believes he is a hypochondriac, despite Calvin denying being one, and advises him to go to a support group for those with cancer to gain a different perspective. At the meeting, Calvin encounters Skye who immediately shows an interest in him. Although he makes multiple attempts to clarify that he does not have cancer to Skye, the two quickly become friends and Calvin willingly offers to help Skye finish her list of things to do before she dies. Initially annoyed with her blunt and unpredictable behavior, Calvin eventually confesses that he enjoys being her friend and even misses her when she is not around. Skye goes to a high school party with Calvin, where she witnesses one of her friends making out with Will, a guy whom she has a crush on. As Calvin and Skye begin to spend more time together, Calvin slowly overcomes his fear of dying.