Featuring the trademark Chow slapstick humor, CJ7 is a comedy about a poor laborer father, Ti, played by Stephen Chow, and his young son, Dicky. When a fascinating and strange new pet enters their lives, Dicky, an elementary school student, sees a chance to overcome his poor background and shabby clothes and impress his fellow students for the first time in his life. The "pet" however has other ideas and when Dicky brings it to class, comedic chaos erupts including a showdown with the terrifying school bully, Storm Dragon!