Ti (Stephen Chow) is a poor, widowed father living in a rundowed shack in Hong Kong. He works as a day laborer on construction sites to afford sending his young son, Dicky (Xu Jiao), to a prestigious, expensive private school. Ti believes that a good education is the only way for Dicky to escape poverty, even though Dicky is constantly bullied by his wealthy classmates and struggles to fit in.
CJ7 blends Stephen Chow's signature slapstick humor (kung fu-style fighting, gross-out gags, absurd situations) with a genuinely moving story about . The film argues that a parent's love and a child's happiness are far more valuable than wealth or perfect test scores. Ti (Stephen Chow) is a poor, widowed father
The emotional heart of the film comes when Ti, working on a high scaffold, gets distracted and suffers a fatal fall. At the hospital, Ti dies. A grief-stricken Dicky sobs alone at home until CJ7, seeing his sadness, uses all its life force to heal the father. The process works—Ti is resurrected—but the effort drains all of CJ7's energy, and the creature turns into a lifeless, stuffed doll. CJ7 blends Stephen Chow's signature slapstick humor (kung
CJ7 is not a powerful superhero; instead, it's like a hyperactive, loyal puppy. It can fly, telekinetically move objects, and repair things with its tongue. However, its "help" often backfires hilariously. It tries to help Dicky cheat on an exam (with disastrous results), fights off a giant bully dog, and creates general chaos at school. Dicky loves CJ7, but their relationship is tested when CJ7 accidentally gets Dicky into more trouble with his strict father. At the hospital, Ti dies
One night, while rummaging through a junkyard, Ti finds a strange, glowing, lime-green orb. He takes it home, thinking it might be a new toy for his son. To their astonishment, the orb turns out to be a clumsy, cute, and mischievous alien creature with magical powers. Dicky names it "CJ7" (or "CJ7" for short, after the orb’s label).
Dicky is devastated, believing CJ7 is dead. He buries the doll. However, days later, a whole new generation of tiny alien "CJ7s" hatches from the orb, all just as cute and rambunctious as the original. Meanwhile, Ti’s near-death experience has softened him; he no longer pressures Dicky about grades and embraces a simpler, happier life with his son. The film ends with Dicky and his father happy, as a new, baby CJ7 watches over them.