Jet Li Sam Wong / Wang Xincheng Wen Zhang David / Dafu Ocean Heaven is about a terminally ill father, Sam Wong (Jet Li) as he works his job in an aquarium and struggles to look after his 21 year old autistic son Dafu (Wen Zhang). Sam has single handedly brought up his son since his wife passed away 14 years ago and looks after him day and night attempting to help him learn basic tasks in order to care for himself, as well as searching for a home for his son before he passes away. As the story progresses, the growing relationship between father and son as well as the community around them become clearer. Ling ling (Kwai Lun-mei) plays the role of a clown who is part of a small traveling circus (they perform in the aquarium for a short period of time) and who gets on well with Dafu, leading to a close friendship between them. Though Dafu struggles to learn many basic tasks, Sam perseveres in teaching his son the tasks that he will need to know how to perform himself once his father dies. Meanwhile, the principal of the boarding school for mentally challenged children that Dafu attended as a child finally recommends Dafu to a newly opened institution where he can stay after his father dies. Dafu continues learning. Ling Ling, knowing that she is about to have to leave with her circus, teaches Dafu to pick up the phone in the aquarium when he hears it, and she will talk to him. Sam, for the first time, swims in the aquarium with his son, dressed up as a sea turtle, telling his son not to be afraid when he is gone; he will be like the turtles in the aquarium, always swimming close by with him. Ling Ling leaves with her circus. Sam eventually dies, and his funeral is attended by close friends and family. After the funeral, Dafu is seen doing some of the things that his father struggled so much to teach him with success. He cooks by himself, knows how to ride the bus, and picks up the phone when Ling Ling calls. It is implied that from then on, Dafu will know how to lead his life on his own, though he still has Sam's old friends helping him along the way.