Chris Garner (Will Smith) used all his savings to buy a high-tech treatment device and marketed it to hospitals everywhere, but the price was high and few people accepted it. No matter how hard he tried, he couldn't provide a good living environment for his wife and children. His wife (Sandy Newton Thandie Newton) finally chose to leave home. From then on, he lived together with his son Christopher (Jaden Smith). Chris finally won the opportunity to intern in a stock investment company. Even if there was no remuneration and the chance of success was only 5%, he still worked hard. His son was his strength. He rolled his eyes and hid in a public toilet in a subway station with his son and lived in a church shelter... He firmly believed that happiness would come tomorrow.