Perennially stoned Cheech and Chong tear through the city of Los Angeles, causing trouble wherever they go. After Cheech loses his job, the two pot enthusiasts head to the welfare offices where Cheech’s girlfriend, Donna, works. Instead of collecting unemployment, they find themselves thrown back on the streets, searching for a way to earn new income. But when Cheech’s cousin, “Red” Mendoza, arrives, things get even crazier.

In the year 2025, the ozone layer is believed to have been destroyed. It is up to MacLeod and Rameriz to set things right. Opposition comes from both the planet Ziest (MacLeod and Ramirez’s homeworld) and a corporation profiting from the supposed lack of ozone. Also, flashbacks show the story behind MacLeod and Ramirez’s exile from Ziest.

Trying to rescue her home planet from destruction, a gorgeous extraterrestrial named Celeste arrives on Earth and begins her scientific research. She woos quirky scientist Dr. Steve Mills, a widower with a young daughter. Before long, Celeste finds herself in love with Steve and her new life on Earth, where she experiences true intimacy for the first time. But when she loses sight of her mission, she begins to question where she belongs.

The Waterbury family are completely happy until mysterious men take their father away and they have to move up to Yorkshire without him. The three open-hearted children soon make many friends including their Old Gentleman whom they regularly wave to on his morning train journey. Bobbie, the eldest girl, makes contact with him to try and get help for the problems they are facing. Meanwhile the children find themselves involved in several unexpected dramas on the railway

King Arthur establishes the ideals and laws of Camelot but is tragically forced to enforce these laws against his own wife.