 Harrison, Penny, Julia, and Milo all have unfinished business in this life. Unfortunately they find themselves all aboard a city bus that takes a tumble causing their four early deaths. At the same time, Thomas is born and the spirits of the unfortunate four are delightfully intertangled with Thomas  consiousness. When the four discover that they are to use Thomas to finish their business here on earth, they learn of what was important to each one of them and Thomas learns a lesson too.