Jennings (Ben Affleck) is a highly skilled electronics engineer working for a high-tech company, researching a secret project. Because this work was extremely important, the company promised him a reward of up to $4 billion. However, after completing this arduous five-year task, Jennings did not receive his enormous payment but instead unexpectedly fell into a coma. When he woke up, all memories from the past two years were gone. The company's boss handed Jennings an envelope filled with random items and told him that he had personally agreed to work voluntarily without any compensation.