After Kim and her husband, Brian, decide to quit their jobs to travel around the world, they're given a yellow envelope containing a check and instructions to give the money away. There are only three rules for the envelope: don't overthink it, share your experiences, and don't feel pressured to give it all away. Through Ecuador, Peru, Nepal, and beyond, Kim and Brian face obstacles, including major challenges to their relationship. As they distribute the money to people they encounter along the way, they learn that money does not have anything to do with the capacity to give but that it is the giving of ourselves that is transformational.