On a hot summer day, a young man named Eric, who uses a wheelchair due to an illness, encounters a strange and unforgettable visitor from another world: an adorable alien who has gotten lost on Earth. This being, resembling a curious walking and talking M&M, arrives on our planet after his spaceship crashes in the California desert. As he tries to find his way back home, he becomes friends with Eric and his family.
Together, they face a series of fun and exciting adventures while the alien attempts to evade a group of government agents who are trying to capture him. Although initially the two communicate through gestures and a peculiar language, they soon develop a special bond that connects them despite their differences. Eric, along with his new group of friends, strives to protect their new companion from the clutches of scientists and find a way to reunite him with his family.
With iconic scenes that include a memorable visit to a shopping mall, the central message revolves around acceptance, friendship, and the importance of helping one another. In a haunting blend of comedy, adventure, and a touch of melodrama, the proposal to explore the value of friendship transcends cultural and galactic barriers, making this story an unforgettable classic of the 80s.