 In 1959, Milo, Penny, Julia, and Harrison board a bus that later crashes, and all of them die but do not go to heaven right away. A baby is born in town at the same moment the bus crashes. The four dead passengers are tied to the baby, who would be named Thomas. For some reason Thomas can see them, and Thomas grows fond of them but when people think that Thomas might have something wrong with him, they decide not to let Thomas see them, which devastates him. Thirty years later Thomas is all grown and a little jaded when it comes to letting people into his life, and the four of them are still with him even though he can t see them. One day they simultaneously appear to him, and stay by his side until each one completes the final task of their personal lives.